diff --git a/CHANGELOG.md b/CHANGELOG.md
index a73464899..471ad5741 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## 2.17.0-beta.x
 
+- Add `encode{Derived, Multi}Address` to encode derived/multi addresses
 - Correctly handle 0 inputs in `numberToU8a`
 - Simplify and flatten base58 dependencies
 
diff --git a/package.json b/package.json
index 3e6bea21c..df1123804 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@babel/core": "^7.10.4",
-    "@polkadot/dev": "^0.55.18",
+    "@polkadot/dev": "^0.55.19",
     "@polkadot/ts": "^0.3.27",
     "@types/jest": "^26.0.3"
   },
diff --git a/packages/util-crypto/src/address/encodeDerived.spec.ts b/packages/util-crypto/src/address/encodeDerived.spec.ts
new file mode 100644
index 000000000..41f4286d5
--- /dev/null
+++ b/packages/util-crypto/src/address/encodeDerived.spec.ts
@@ -0,0 +1,13 @@
+// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import encodeDerivedAddress from './encodeDerived';
+
+describe('encodeDerivedAddress', (): void => {
+  it('creates a valid known derived address', (): void => {
+    expect(
+      encodeDerivedAddress('5GvUh7fGKsdBEh5XpypkfkGuf7j3vXLxH9BdxjxnJNVXRYi1', 0)
+    ).toEqual('5E5XxqPxm7QbEs6twYfp3tyjXidn4kqRrNPH4o6JK9JSLUeD');
+  });
+});
diff --git a/packages/util-crypto/src/address/encodeDerived.ts b/packages/util-crypto/src/address/encodeDerived.ts
new file mode 100644
index 000000000..870f71161
--- /dev/null
+++ b/packages/util-crypto/src/address/encodeDerived.ts
@@ -0,0 +1,21 @@
+// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { Prefix } from './types';
+
+import BN from 'bn.js';
+
+import decode from './decode';
+import encode from './encode';
+import keyDerived from './keyDerived';
+
+/**
+ * @name encodeDerivedAddress
+ * @summary Creates a derived address.
+ * @description
+ * Creates a Substrate derived address based on the input address/publicKey and the index supplied.
+ */
+export default function encodeDerivedAddress (who: Uint8Array | string, index: BigInt | BN | number, ss58Format?: Prefix): string {
+  return encode(keyDerived(decode(who), index), ss58Format);
+}
diff --git a/packages/util-crypto/src/address/encodeMulti.spec.ts b/packages/util-crypto/src/address/encodeMulti.spec.ts
new file mode 100644
index 000000000..c24da9c80
--- /dev/null
+++ b/packages/util-crypto/src/address/encodeMulti.spec.ts
@@ -0,0 +1,17 @@
+// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import encodeMultiAddress from './encodeMulti';
+
+describe('encodeMultiAddress', (): void => {
+  it('creates a valid known multi address', (): void => {
+    expect(
+      encodeMultiAddress([
+        '5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY',
+        '5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty',
+        '5FLSigC9HGRKVhB9FiEo4Y3koPsNmBmLJbpXg2mp1hXcS59Y'
+      ], 2)
+    ).toEqual('5DjYJStmdZ2rcqXbXGX7TW85JsrW6uG4y9MUcLq2BoPMpRA7');
+  });
+});
diff --git a/packages/util-crypto/src/address/encodeMulti.ts b/packages/util-crypto/src/address/encodeMulti.ts
new file mode 100644
index 000000000..da444f823
--- /dev/null
+++ b/packages/util-crypto/src/address/encodeMulti.ts
@@ -0,0 +1,20 @@
+// Copyright 2017-2020 @polkadot/util-crypto authors & contributors
+// This software may be modified and distributed under the terms
+// of the Apache-2.0 license. See the LICENSE file for details.
+
+import { Prefix } from './types';
+
+import BN from 'bn.js';
+
+import encode from './encode';
+import keyMulti from './keyMulti';
+
+/**
+ * @name encodeMultiAddress
+ * @summary Creates a multisig address.
+ * @description
+ * Creates a Substrate multisig address based on the input address and the required threshold.
+ */
+export default function encodeMultiAddress (who: (Uint8Array | string)[], threshold: BigInt | BN | number, ss58Format?: Prefix): string {
+  return encode(keyMulti(who, threshold), ss58Format);
+}
diff --git a/packages/util-crypto/src/address/index.ts b/packages/util-crypto/src/address/index.ts
index 5d8e7c3b1..853e9c01b 100644
--- a/packages/util-crypto/src/address/index.ts
+++ b/packages/util-crypto/src/address/index.ts
@@ -8,6 +8,8 @@ import createKeyMulti from './keyMulti';
 import createKeyDerived from './keyDerived';
 import decodeAddress from './decode';
 import encodeAddress from './encode';
+import encodeDerivedAddress from './encodeDerived';
+import encodeMultiAddress from './encodeMulti';
 import addressEq from './eq';
 import setSS58Format from './setSS58Format';
 import sortAddresses from './sort';
@@ -20,6 +22,8 @@ export {
   createKeyMulti,
   decodeAddress,
   encodeAddress,
+  encodeDerivedAddress,
+  encodeMultiAddress,
   setSS58Format,
   sortAddresses
 };
diff --git a/packages/util-crypto/src/address/keyDerived.spec.ts b/packages/util-crypto/src/address/keyDerived.spec.ts
index 3656d35b5..6d40d309f 100644
--- a/packages/util-crypto/src/address/keyDerived.spec.ts
+++ b/packages/util-crypto/src/address/keyDerived.spec.ts
@@ -4,7 +4,7 @@
 
 import createKeyDerived from './keyDerived';
 
-describe('createKeySub', (): void => {
+describe('createKeyDerived', (): void => {
   it('matches sub accounts with Rust', (): void => {
     expect(
       createKeyDerived(new Uint8Array([1, 0, 0, 0, 0, 0, 0, 0]), 0)
diff --git a/yarn.lock b/yarn.lock
index fdefb6458..169735ffd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2654,9 +2654,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@polkadot/dev@npm:^0.55.18":
-  version: 0.55.18
-  resolution: "@polkadot/dev@npm:0.55.18"
+"@polkadot/dev@npm:^0.55.19":
+  version: 0.55.19
+  resolution: "@polkadot/dev@npm:0.55.19"
   dependencies:
     "@babel/cli": ^7.10.4
     "@babel/core": ^7.10.4
@@ -2739,7 +2739,7 @@ __metadata:
     polkadot-exec-typedoc: scripts/polkadot-exec-typedoc.js
     polkadot-exec-vuepress: scripts/polkadot-exec-vuepress.js
     polkadot-exec-webpack: scripts/polkadot-exec-webpack.js
-  checksum: 3/96b25c14c9bd66d670ad49d63f37edb2226444530464a10899c0b9121448f246f0b7df28c92393e317ffe86be7f34e30f4bbad0bc48fa4151b07f31fd766001d
+  checksum: 3/5f690f0995be5cbbf0b3522f7e494c3a23c1e35632918af0c34842363b5c93431192b058878c9cc91a1110a84c5aef1fd3100ed84ea2371d2c5af5322f877d31
   languageName: node
   linkType: hard
 
@@ -15736,7 +15736,7 @@ __metadata:
   resolution: "root-workspace-0b6124@workspace:."
   dependencies:
     "@babel/core": ^7.10.4
-    "@polkadot/dev": ^0.55.18
+    "@polkadot/dev": ^0.55.19
     "@polkadot/ts": ^0.3.27
     "@types/jest": ^26.0.3
   languageName: unknown