diff --git a/contracts/test-utils/src/assertions.ts b/contracts/test-utils/src/assertions.ts
index e87a9936ab..44059a98a5 100644
--- a/contracts/test-utils/src/assertions.ts
+++ b/contracts/test-utils/src/assertions.ts
@@ -81,7 +81,7 @@ export async function expectInsufficientFundsAsync<T>(p: Promise<T>): Promise<vo
 }
 
 /**
- * Resolves if the the sendTransaction call fails with the given revert reason.
+ * Resolves if the sendTransaction call fails with the given revert reason.
  * However, since Geth does not support revert reasons for sendTransaction, this
  * falls back to expectTransactionFailedWithoutReasonAsync if the backing
  * Ethereum node is Geth.
@@ -154,7 +154,7 @@ export async function expectTransactionFailedWithoutReasonAsync(p: sendTransacti
 }
 
 /**
- * Resolves if the the contract call fails with the given revert reason.
+ * Resolves if the contract call fails with the given revert reason.
  * @param p a Promise resulting from a contract call
  * @param reason a specific revert reason
  * @returns a new Promise which will reject if the conditions are not met and
diff --git a/contracts/zero-ex/contracts/src/features/multiplex/MultiplexUniswapV2.sol b/contracts/zero-ex/contracts/src/features/multiplex/MultiplexUniswapV2.sol
index cbd588873c..3aafc526f6 100644
--- a/contracts/zero-ex/contracts/src/features/multiplex/MultiplexUniswapV2.sol
+++ b/contracts/zero-ex/contracts/src/features/multiplex/MultiplexUniswapV2.sol
@@ -193,7 +193,7 @@ abstract contract MultiplexUniswapV2 is FixinCommon, FixinTokenSpender {
         }
     }
 
-    // Computes the the amount of output token that would be bought
+    // Computes the amount of output token that would be bought
     // from Uniswap/Sushiswap given the input amount.
     function _computeUniswapOutputAmount(
         address pairAddress,
diff --git a/contracts/zero-ex/contracts/src/migrations/FullMigration.sol b/contracts/zero-ex/contracts/src/migrations/FullMigration.sol
index 32042deb7e..53ad2724ae 100644
--- a/contracts/zero-ex/contracts/src/migrations/FullMigration.sol
+++ b/contracts/zero-ex/contracts/src/migrations/FullMigration.sol
@@ -25,7 +25,7 @@ import "./InitialMigration.sol";
 
 /// @dev A contract for deploying and configuring the full ZeroEx contract.
 contract FullMigration {
-    /// @dev Features to add the the proxy contract.
+    /// @dev Features to add the proxy contract.
     struct Features {
         SimpleFunctionRegistryFeature registry;
         OwnableFeature ownable;
diff --git a/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol b/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol
index 8c51f20ac6..12010bd572 100644
--- a/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol
+++ b/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol
@@ -23,7 +23,7 @@ import "./LibBootstrap.sol";
 
 /// @dev A contract for deploying and configuring a minimal ZeroEx contract.
 contract InitialMigration {
-    /// @dev Features to bootstrap into the the proxy contract.
+    /// @dev Features to bootstrap into the proxy contract.
     struct BootstrapFeatures {
         SimpleFunctionRegistryFeature registry;
         OwnableFeature ownable;
diff --git a/docs/basics/allowances.rst b/docs/basics/allowances.rst
index b78aee5622..89994e4fe7 100644
--- a/docs/basics/allowances.rst
+++ b/docs/basics/allowances.rst
@@ -2,4 +2,4 @@
 Allowances
 ###############################
 
-Both maker and taker allowance should be be set directly on the `Exchange Proxy contract <./addresses.html#exchange-proxy-addresses>`_.
+Both maker and taker allowance should be set directly on the `Exchange Proxy contract <./addresses.html#exchange-proxy-addresses>`_.
diff --git a/packages/contract-artifacts/artifacts/IAssetData.json b/packages/contract-artifacts/artifacts/IAssetData.json
index ddec3d856d..bdad9c901b 100644
--- a/packages/contract-artifacts/artifacts/IAssetData.json
+++ b/packages/contract-artifacts/artifacts/IAssetData.json
@@ -110,7 +110,7 @@
                 "MultiAsset(uint256[],bytes[])": {
                     "details": "Function signature for encoding MultiAsset assetData.",
                     "params": {
-                        "nestedAssetData": "Array of assetData fields that will be be dispatched to their correspnding AssetProxy contract.",
+                        "nestedAssetData": "Array of assetData fields that will be dispatched to their correspnding AssetProxy contract.",
                         "values": "Array of amounts that correspond to each asset to be transferred.        Note that each value will be multiplied by the amount being filled in the order before transferring."
                     }
                 },
diff --git a/packages/contract-wrappers/docs/reference.mdx b/packages/contract-wrappers/docs/reference.mdx
index 9b02ea5121..b6b139e851 100644
--- a/packages/contract-wrappers/docs/reference.mdx
+++ b/packages/contract-wrappers/docs/reference.mdx
@@ -5003,7 +5003,7 @@ Function signature for encoding MultiAsset assetData.
 Name | Type | Description |
 ------ | ------ | ------ |
 `values` | `BigNumber`[] | Array of amounts that correspond to each asset to be     transferred.        Note that each value will be multiplied by the     amount being filled in the order before transferring. |
-`nestedAssetData` | string[] | Array of assetData fields that will be be dispatched     to their correspnding AssetProxy contract.  |
+`nestedAssetData` | string[] | Array of assetData fields that will be dispatched     to their correspnding AssetProxy contract.  |
 
 **Returns:** *`ContractTxFunctionObj<void>`*
 
diff --git a/packages/contract-wrappers/src/generated-wrappers/i_asset_data.ts b/packages/contract-wrappers/src/generated-wrappers/i_asset_data.ts
index 99fdf0f7a7..3fb505f266 100644
--- a/packages/contract-wrappers/src/generated-wrappers/i_asset_data.ts
+++ b/packages/contract-wrappers/src/generated-wrappers/i_asset_data.ts
@@ -616,7 +616,7 @@ export class IAssetDataContract extends BaseContract {
      * @param values Array of amounts that correspond to each asset to be
      *     transferred.        Note that each value will be multiplied by the
      *     amount being filled in the order before transferring.
-     * @param nestedAssetData Array of assetData fields that will be be dispatched
+     * @param nestedAssetData Array of assetData fields that will be dispatched
      *     to their correspnding AssetProxy contract.
      */
     public MultiAsset(values: BigNumber[], nestedAssetData: string[]): ContractTxFunctionObj<void> {