diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9a82c5fcf4..6c09fb404f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,10 +20,13 @@ and this project adheres to
   ([#1072]).
 - @cosmjs/math: Add `{Uint32,Int53,Uint53,Uint64}.toBigInt` converter methods.
 - @cosmjs/stargate: Add missing exports `AminoMsgTransfer`/`isAminoMsgTransfer`.
+- @cosmjs/stargate: Add support for `MsgVoteWeighted` (register by default and
+  create Amino JSON converters) ([#1224]).
 
 [#1072]: https://github.com/cosmos/cosmjs/issues/1072
 [#1154]: https://github.com/cosmos/cosmjs/issues/1154
 [#1176]: https://github.com/cosmos/cosmjs/pull/1176
+[#1224]: https://github.com/cosmos/cosmjs/pull/1224
 
 ### Fixed
 
diff --git a/packages/stargate/src/index.ts b/packages/stargate/src/index.ts
index 4869418e04..3f8748c35b 100644
--- a/packages/stargate/src/index.ts
+++ b/packages/stargate/src/index.ts
@@ -19,6 +19,7 @@ export {
   AminoMsgUnjail,
   AminoMsgVerifyInvariant,
   AminoMsgVote,
+  AminoMsgVoteWeighted,
   AminoMsgWithdrawDelegatorReward,
   AminoMsgWithdrawValidatorCommission,
   AuthExtension,
@@ -44,6 +45,7 @@ export {
   isAminoMsgUnjail,
   isAminoMsgVerifyInvariant,
   isAminoMsgVote,
+  isAminoMsgVoteWeighted,
   isAminoMsgWithdrawDelegatorReward,
   isAminoMsgWithdrawValidatorCommission,
   isMsgDelegateEncodeObject,
@@ -53,6 +55,7 @@ export {
   isMsgTransferEncodeObject,
   isMsgUndelegateEncodeObject,
   isMsgVoteEncodeObject,
+  isMsgVoteWeightedEncodeObject,
   isMsgWithdrawDelegatorRewardEncodeObject,
   MintExtension,
   MintParams,
@@ -63,6 +66,7 @@ export {
   MsgTransferEncodeObject,
   MsgUndelegateEncodeObject,
   MsgVoteEncodeObject,
+  MsgVoteWeightedEncodeObject,
   MsgWithdrawDelegatorRewardEncodeObject,
   setupAuthExtension,
   setupBankExtension,
diff --git a/packages/stargate/src/modules/gov/aminomessages.spec.ts b/packages/stargate/src/modules/gov/aminomessages.spec.ts
index 05861f952a..2880152929 100644
--- a/packages/stargate/src/modules/gov/aminomessages.spec.ts
+++ b/packages/stargate/src/modules/gov/aminomessages.spec.ts
@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/naming-convention */
 import { TextProposal, VoteOption } from "cosmjs-types/cosmos/gov/v1beta1/gov";
-import { MsgDeposit, MsgSubmitProposal, MsgVote } from "cosmjs-types/cosmos/gov/v1beta1/tx";
+import { MsgDeposit, MsgSubmitProposal, MsgVote, MsgVoteWeighted } from "cosmjs-types/cosmos/gov/v1beta1/tx";
 import Long from "long";
 
 import { AminoTypes } from "../../aminotypes";
@@ -8,6 +8,7 @@ import {
   AminoMsgDeposit,
   AminoMsgSubmitProposal,
   AminoMsgVote,
+  AminoMsgVoteWeighted,
   createGovAminoConverters,
 } from "./aminomessages";
 
@@ -90,6 +91,34 @@ describe("AminoTypes", () => {
       };
       expect(aminoMsg).toEqual(expected);
     });
+
+    it("works for MsgVoteWeighted", () => {
+      const msg: MsgVoteWeighted = {
+        proposalId: Long.fromNumber(5),
+        voter: "cosmos1xy4yqngt0nlkdcenxymg8tenrghmek4nmqm28k",
+        options: [
+          { option: VoteOption.VOTE_OPTION_NO_WITH_VETO, weight: "700000000000000000" /* 0.7 */ },
+          { option: VoteOption.VOTE_OPTION_NO, weight: "300000000000000000" /* 0.3 */ },
+        ],
+      };
+      const aminoTypes = new AminoTypes(createGovAminoConverters());
+      const aminoMsg = aminoTypes.toAmino({
+        typeUrl: "/cosmos.gov.v1beta1.MsgVoteWeighted",
+        value: msg,
+      });
+      const expected: AminoMsgVoteWeighted = {
+        type: "cosmos-sdk/MsgVoteWeighted",
+        value: {
+          proposal_id: "5",
+          voter: "cosmos1xy4yqngt0nlkdcenxymg8tenrghmek4nmqm28k",
+          options: [
+            { option: VoteOption.VOTE_OPTION_NO_WITH_VETO, weight: "0.700000000000000000" },
+            { option: VoteOption.VOTE_OPTION_NO, weight: "0.300000000000000000" },
+          ],
+        },
+      };
+      expect(aminoMsg).toEqual(expected);
+    });
   });
 
   describe("fromAmino", () => {
@@ -167,5 +196,32 @@ describe("AminoTypes", () => {
         value: expectedValue,
       });
     });
+
+    it("works for MsgVoteWeighted", () => {
+      const aminoMsg: AminoMsgVoteWeighted = {
+        type: "cosmos-sdk/MsgVoteWeighted",
+        value: {
+          proposal_id: "5",
+          voter: "cosmos1xy4yqngt0nlkdcenxymg8tenrghmek4nmqm28k",
+          options: [
+            { option: 4, weight: "0.750000000000000000" },
+            { option: 3, weight: "0.250000000000000000" },
+          ],
+        },
+      };
+      const msg = new AminoTypes(createGovAminoConverters()).fromAmino(aminoMsg);
+      const expectedValue: MsgVoteWeighted = {
+        proposalId: Long.fromNumber(5),
+        voter: "cosmos1xy4yqngt0nlkdcenxymg8tenrghmek4nmqm28k",
+        options: [
+          { option: VoteOption.VOTE_OPTION_NO_WITH_VETO, weight: "750000000000000000" },
+          { option: VoteOption.VOTE_OPTION_NO, weight: "250000000000000000" },
+        ],
+      };
+      expect(msg).toEqual({
+        typeUrl: "/cosmos.gov.v1beta1.MsgVoteWeighted",
+        value: expectedValue,
+      });
+    });
   });
 });
diff --git a/packages/stargate/src/modules/gov/aminomessages.ts b/packages/stargate/src/modules/gov/aminomessages.ts
index 67ba88d276..e4de005a4a 100644
--- a/packages/stargate/src/modules/gov/aminomessages.ts
+++ b/packages/stargate/src/modules/gov/aminomessages.ts
@@ -1,12 +1,14 @@
 /* eslint-disable @typescript-eslint/naming-convention */
 import { AminoMsg, Coin } from "@cosmjs/amino";
+import { Decimal } from "@cosmjs/math";
 import { assert, assertDefinedAndNotNull, isNonNullObject } from "@cosmjs/utils";
 import { TextProposal, voteOptionFromJSON } from "cosmjs-types/cosmos/gov/v1beta1/gov";
-import { MsgDeposit, MsgSubmitProposal, MsgVote } from "cosmjs-types/cosmos/gov/v1beta1/tx";
+import { MsgDeposit, MsgSubmitProposal, MsgVote, MsgVoteWeighted } from "cosmjs-types/cosmos/gov/v1beta1/tx";
 import { Any } from "cosmjs-types/google/protobuf/any";
 import Long from "long";
 
 import { AminoConverters } from "../../aminotypes";
+import { decodeCosmosSdkDecFromProto } from "../../queryclient";
 
 /** Supports submitting arbitrary proposal content. */
 export interface AminoMsgSubmitProposal extends AminoMsg {
@@ -59,6 +61,32 @@ export function isAminoMsgVote(msg: AminoMsg): msg is AminoMsgVote {
   return msg.type === "cosmos-sdk/MsgVote";
 }
 
+/**
+ * @see https://github.com/cosmos/cosmos-sdk/blob/v0.44.5/x/gov/types/tx.pb.go#L196-L203
+ * @see https://github.com/cosmos/cosmos-sdk/blob/v0.44.5/x/gov/types/gov.pb.go#L124-L130
+ */
+export interface AminoMsgVoteWeighted extends AminoMsg {
+  readonly type: "cosmos-sdk/MsgVoteWeighted";
+  readonly value: {
+    readonly proposal_id: string;
+    /** Bech32 account address */
+    readonly voter: string;
+    readonly options: Array<{
+      /**
+       * VoteOption as integer from 0 to 4 🤷‍
+       *
+       * @see https://github.com/cosmos/cosmos-sdk/blob/v0.44.5/x/gov/types/gov.pb.go#L35-L49
+       */
+      readonly option: number;
+      readonly weight: string;
+    }>;
+  };
+}
+
+export function isAminoMsgVoteWeighted(msg: AminoMsg): msg is AminoMsgVoteWeighted {
+  return (msg as AminoMsgVoteWeighted).type === "cosmos-sdk/MsgVoteWeighted";
+}
+
 /** Submits a deposit to an existing proposal */
 export interface AminoMsgDeposit extends AminoMsg {
   readonly type: "cosmos-sdk/MsgDeposit";
@@ -110,6 +138,31 @@ export function createGovAminoConverters(): AminoConverters {
         };
       },
     },
+    "/cosmos.gov.v1beta1.MsgVoteWeighted": {
+      aminoType: "cosmos-sdk/MsgVoteWeighted",
+      toAmino: ({ options, proposalId, voter }: MsgVoteWeighted): AminoMsgVoteWeighted["value"] => {
+        return {
+          options: options.map((o) => ({
+            option: o.option,
+            // Weight is between 0 and 1, so we always have 20 characters when printing all trailing
+            // zeros (e.g. "0.700000000000000000" or "1.000000000000000000")
+            weight: decodeCosmosSdkDecFromProto(o.weight).toString().padEnd(20, "0"),
+          })),
+          proposal_id: proposalId.toString(),
+          voter: voter,
+        };
+      },
+      fromAmino: ({ options, proposal_id, voter }: AminoMsgVoteWeighted["value"]): MsgVoteWeighted => {
+        return {
+          proposalId: Long.fromString(proposal_id),
+          voter: voter,
+          options: options.map((o) => ({
+            option: voteOptionFromJSON(o.option),
+            weight: Decimal.fromUserInput(o.weight, 18).atomics,
+          })),
+        };
+      },
+    },
     "/cosmos.gov.v1beta1.MsgSubmitProposal": {
       aminoType: "cosmos-sdk/MsgSubmitProposal",
       toAmino: ({
diff --git a/packages/stargate/src/modules/gov/messages.spec.ts b/packages/stargate/src/modules/gov/messages.spec.ts
index e7165fa929..378147ea03 100644
--- a/packages/stargate/src/modules/gov/messages.spec.ts
+++ b/packages/stargate/src/modules/gov/messages.spec.ts
@@ -1,4 +1,4 @@
-import { coin, coins, makeCosmoshubPath } from "@cosmjs/amino";
+import { coin, coins, makeCosmoshubPath, Secp256k1HdWallet } from "@cosmjs/amino";
 import { DirectSecp256k1HdWallet } from "@cosmjs/proto-signing";
 import { assert, sleep } from "@cosmjs/utils";
 import { TextProposal, VoteOption } from "cosmjs-types/cosmos/gov/v1beta1/gov";
@@ -17,6 +17,7 @@ import {
   validator,
 } from "../../testutils.spec";
 import { MsgDelegateEncodeObject, MsgSubmitProposalEncodeObject, MsgVoteEncodeObject } from "../";
+import { MsgVoteWeightedEncodeObject } from "./messages";
 
 describe("gov messages", () => {
   const defaultFee = {
@@ -166,5 +167,72 @@ describe("gov messages", () => {
       client.disconnect();
     });
   });
+
+  describe("MsgVoteWeighted", () => {
+    it("works", async () => {
+      pendingWithoutSimapp();
+      assert(voterWallet);
+      assert(proposalId, "Missing proposal ID");
+      const client = await SigningStargateClient.connectWithSigner(simapp.tendermintUrl, voterWallet);
+
+      const voteMsg: MsgVoteWeightedEncodeObject = {
+        typeUrl: "/cosmos.gov.v1beta1.MsgVoteWeighted",
+        value: {
+          proposalId: longify(proposalId),
+          voter: voter1Address,
+          options: [
+            {
+              option: VoteOption.VOTE_OPTION_YES,
+              weight: "700000000000000000", // 0.7
+            },
+            {
+              option: VoteOption.VOTE_OPTION_NO,
+              weight: "200000000000000000", // 0.2
+            },
+            {
+              option: VoteOption.VOTE_OPTION_ABSTAIN,
+              weight: "100000000000000000", // 0.1
+            },
+          ],
+        },
+      };
+      const voteResult = await client.signAndBroadcast(voter1Address, [voteMsg], defaultFee);
+      assertIsDeliverTxSuccess(voteResult);
+
+      client.disconnect();
+    });
+
+    it("works with Amino JSON sign mode", async () => {
+      pendingWithoutSimapp();
+      assert(voterWalletAmino);
+      assert(proposalId, "Missing proposal ID");
+      const client = await SigningStargateClient.connectWithSigner(simapp.tendermintUrl, voterWalletAmino);
+
+      const voteMsg: MsgVoteWeightedEncodeObject = {
+        typeUrl: "/cosmos.gov.v1beta1.MsgVoteWeighted",
+        value: {
+          proposalId: longify(proposalId),
+          voter: voter1Address,
+          options: [
+            {
+              option: VoteOption.VOTE_OPTION_YES,
+              weight: "700000000000000000", // 0.7
+            },
+            {
+              option: VoteOption.VOTE_OPTION_NO,
+              weight: "200000000000000000", // 0.2
+            },
+            {
+              option: VoteOption.VOTE_OPTION_ABSTAIN,
+              weight: "100000000000000000", // 0.1
+            },
+          ],
+        },
+      };
+      const voteResult = await client.signAndBroadcast(voter1Address, [voteMsg], defaultFee);
+      assertIsDeliverTxSuccess(voteResult);
+
+      client.disconnect();
+    });
   });
 });
diff --git a/packages/stargate/src/modules/gov/messages.ts b/packages/stargate/src/modules/gov/messages.ts
index fb1905b18b..d926e389ef 100644
--- a/packages/stargate/src/modules/gov/messages.ts
+++ b/packages/stargate/src/modules/gov/messages.ts
@@ -1,10 +1,11 @@
 import { EncodeObject, GeneratedType } from "@cosmjs/proto-signing";
-import { MsgDeposit, MsgSubmitProposal, MsgVote } from "cosmjs-types/cosmos/gov/v1beta1/tx";
+import { MsgDeposit, MsgSubmitProposal, MsgVote, MsgVoteWeighted } from "cosmjs-types/cosmos/gov/v1beta1/tx";
 
 export const govTypes: ReadonlyArray<[string, GeneratedType]> = [
   ["/cosmos.gov.v1beta1.MsgDeposit", MsgDeposit],
   ["/cosmos.gov.v1beta1.MsgSubmitProposal", MsgSubmitProposal],
   ["/cosmos.gov.v1beta1.MsgVote", MsgVote],
+  ["/cosmos.gov.v1beta1.MsgVoteWeighted", MsgVoteWeighted],
 ];
 
 export interface MsgDepositEncodeObject extends EncodeObject {
@@ -35,3 +36,12 @@ export interface MsgVoteEncodeObject extends EncodeObject {
 export function isMsgVoteEncodeObject(object: EncodeObject): object is MsgVoteEncodeObject {
   return (object as MsgVoteEncodeObject).typeUrl === "/cosmos.gov.v1beta1.MsgVote";
 }
+
+export interface MsgVoteWeightedEncodeObject extends EncodeObject {
+  readonly typeUrl: "/cosmos.gov.v1beta1.MsgVoteWeighted";
+  readonly value: Partial<MsgVoteWeighted>;
+}
+
+export function isMsgVoteWeightedEncodeObject(object: EncodeObject): object is MsgVoteWeightedEncodeObject {
+  return (object as MsgVoteWeightedEncodeObject).typeUrl === "/cosmos.gov.v1beta1.MsgVoteWeighted";
+}
diff --git a/packages/stargate/src/modules/index.ts b/packages/stargate/src/modules/index.ts
index 3358b6a6e8..70b5531def 100644
--- a/packages/stargate/src/modules/index.ts
+++ b/packages/stargate/src/modules/index.ts
@@ -43,19 +43,23 @@ export {
   AminoMsgDeposit,
   AminoMsgSubmitProposal,
   AminoMsgVote,
+  AminoMsgVoteWeighted,
   createGovAminoConverters,
   isAminoMsgDeposit,
   isAminoMsgSubmitProposal,
   isAminoMsgVote,
+  isAminoMsgVoteWeighted,
 } from "./gov/aminomessages";
 export {
   govTypes,
   isMsgDepositEncodeObject,
   isMsgSubmitProposalEncodeObject,
   isMsgVoteEncodeObject,
+  isMsgVoteWeightedEncodeObject,
   MsgDepositEncodeObject,
   MsgSubmitProposalEncodeObject,
   MsgVoteEncodeObject,
+  MsgVoteWeightedEncodeObject,
 } from "./gov/messages";
 export { GovExtension, GovParamsType, GovProposalId, setupGovExtension } from "./gov/queries";
 export { AminoMsgTransfer, createIbcAminoConverters, isAminoMsgTransfer } from "./ibc/aminomessages";