diff --git a/cosmrs/src/bank.rs b/cosmrs/src/bank.rs
index cf5ecdff..de6c8a59 100644
--- a/cosmrs/src/bank.rs
+++ b/cosmrs/src/bank.rs
@@ -60,3 +60,145 @@ impl From<&MsgSend> for proto::cosmos::bank::v1beta1::MsgSend {
         }
     }
 }
+
+/// MsgMultiSend represents an arbitrary multi-in, multi-out send message.
+#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord)]
+pub struct MsgMultiSend {
+    /// Sender account/amount pairs.
+    pub inputs: Vec<MultiSendIo>,
+
+    /// Recipient account/amount pairs.
+    pub outputs: Vec<MultiSendIo>,
+}
+
+impl Msg for MsgMultiSend {
+    type Proto = proto::cosmos::bank::v1beta1::MsgMultiSend;
+}
+
+impl TryFrom<proto::cosmos::bank::v1beta1::MsgMultiSend> for MsgMultiSend {
+    type Error = ErrorReport;
+
+    fn try_from(proto: proto::cosmos::bank::v1beta1::MsgMultiSend) -> Result<MsgMultiSend> {
+        MsgMultiSend::try_from(&proto)
+    }
+}
+
+impl TryFrom<&proto::cosmos::bank::v1beta1::MsgMultiSend> for MsgMultiSend {
+    type Error = ErrorReport;
+
+    fn try_from(proto: &proto::cosmos::bank::v1beta1::MsgMultiSend) -> Result<MsgMultiSend> {
+        Ok(MsgMultiSend {
+            inputs: proto
+                .inputs
+                .iter()
+                .map(TryFrom::try_from)
+                .collect::<Result<_, _>>()?,
+            outputs: proto
+                .outputs
+                .iter()
+                .map(TryFrom::try_from)
+                .collect::<Result<_, _>>()?,
+        })
+    }
+}
+
+impl From<MsgMultiSend> for proto::cosmos::bank::v1beta1::MsgMultiSend {
+    fn from(coin: MsgMultiSend) -> proto::cosmos::bank::v1beta1::MsgMultiSend {
+        proto::cosmos::bank::v1beta1::MsgMultiSend::from(&coin)
+    }
+}
+
+impl From<&MsgMultiSend> for proto::cosmos::bank::v1beta1::MsgMultiSend {
+    fn from(msg: &MsgMultiSend) -> proto::cosmos::bank::v1beta1::MsgMultiSend {
+        proto::cosmos::bank::v1beta1::MsgMultiSend {
+            inputs: msg.inputs.iter().map(Into::into).collect(),
+            outputs: msg.outputs.iter().map(Into::into).collect(),
+        }
+    }
+}
+
+/// Represents a MultiSend Input or Output
+#[derive(Clone, Debug, Eq, PartialEq, PartialOrd, Ord)]
+pub struct MultiSendIo {
+    /// The address that `coins` will be sent to/from
+    pub address: AccountId,
+
+    /// The coins to send to/from `address`
+    pub coins: Vec<Coin>,
+}
+
+impl TryFrom<proto::cosmos::bank::v1beta1::Input> for MultiSendIo {
+    type Error = ErrorReport;
+
+    fn try_from(proto: proto::cosmos::bank::v1beta1::Input) -> Result<MultiSendIo> {
+        MultiSendIo::try_from(&proto)
+    }
+}
+
+impl TryFrom<&proto::cosmos::bank::v1beta1::Input> for MultiSendIo {
+    type Error = ErrorReport;
+
+    fn try_from(proto: &proto::cosmos::bank::v1beta1::Input) -> Result<MultiSendIo> {
+        Ok(MultiSendIo {
+            address: proto.address.parse()?,
+            coins: proto
+                .coins
+                .iter()
+                .map(TryFrom::try_from)
+                .collect::<Result<_, _>>()?,
+        })
+    }
+}
+
+impl TryFrom<proto::cosmos::bank::v1beta1::Output> for MultiSendIo {
+    type Error = ErrorReport;
+
+    fn try_from(proto: proto::cosmos::bank::v1beta1::Output) -> Result<MultiSendIo> {
+        MultiSendIo::try_from(&proto)
+    }
+}
+
+impl TryFrom<&proto::cosmos::bank::v1beta1::Output> for MultiSendIo {
+    type Error = ErrorReport;
+
+    fn try_from(proto: &proto::cosmos::bank::v1beta1::Output) -> Result<MultiSendIo> {
+        Ok(MultiSendIo {
+            address: proto.address.parse()?,
+            coins: proto
+                .coins
+                .iter()
+                .map(TryFrom::try_from)
+                .collect::<Result<_, _>>()?,
+        })
+    }
+}
+
+impl From<MultiSendIo> for proto::cosmos::bank::v1beta1::Output {
+    fn from(output: MultiSendIo) -> proto::cosmos::bank::v1beta1::Output {
+        proto::cosmos::bank::v1beta1::Output::from(&output)
+    }
+}
+
+impl From<&MultiSendIo> for proto::cosmos::bank::v1beta1::Output {
+    fn from(output: &MultiSendIo) -> proto::cosmos::bank::v1beta1::Output {
+        proto::cosmos::bank::v1beta1::Output {
+            address: output.address.to_string(),
+            coins: output.coins.iter().map(Into::into).collect(),
+        }
+    }
+}
+
+impl From<MultiSendIo> for proto::cosmos::bank::v1beta1::Input {
+    fn from(input: MultiSendIo) -> proto::cosmos::bank::v1beta1::Input {
+        proto::cosmos::bank::v1beta1::Input::from(&input)
+    }
+}
+
+impl From<&MultiSendIo> for proto::cosmos::bank::v1beta1::Input {
+    fn from(input: &MultiSendIo) -> proto::cosmos::bank::v1beta1::Input {
+        proto::cosmos::bank::v1beta1::Input {
+            address: input.address.to_string(),
+            coins: input.coins.iter().map(Into::into).collect(),
+        }
+    }
+}
diff --git a/cosmrs/src/tx/msg.rs b/cosmrs/src/tx/msg.rs
index 6de6de5d..cd0e089d 100644
--- a/cosmrs/src/tx/msg.rs
+++ b/cosmrs/src/tx/msg.rs
@@ -61,6 +61,10 @@ impl MsgProto for proto::cosmos::bank::v1beta1::MsgSend {
     const TYPE_URL: &'static str = "/cosmos.bank.v1beta1.MsgSend";
 }
 
+impl MsgProto for proto::cosmos::bank::v1beta1::MsgMultiSend {
+    const TYPE_URL: &'static str = "/cosmos.bank.v1beta1.MsgMultiSend";
+}
+
 impl MsgProto for proto::cosmos::distribution::v1beta1::MsgSetWithdrawAddress {
     const TYPE_URL: &'static str = "/cosmos.distribution.v1beta1.MsgSetWithdrawAddress";
 }