diff --git a/README.md b/README.md
index e03c9c2..c0fdfa8 100644
--- a/README.md
+++ b/README.md
@@ -320,6 +320,10 @@ MultiCurl::setJsonDecoder($mixed)
 MultiCurl::setOpt($option, $value)
 MultiCurl::setOpts($options)
 MultiCurl::setPort($port)
+MultiCurl::setProxy($proxy, $port = null, $username = null, $password = null)
+MultiCurl::setProxyAuth($auth)
+MultiCurl::setProxyTunnel($tunnel = true)
+MultiCurl::setProxyType($type)
 MultiCurl::setReferer($referer)
 MultiCurl::setReferrer($referrer)
 MultiCurl::setRetry($mixed)
@@ -330,6 +334,7 @@ MultiCurl::setXmlDecoder($mixed)
 MultiCurl::start()
 MultiCurl::success($callback)
 MultiCurl::unsetHeader($key)
+MultiCurl::unsetProxy()
 MultiCurl::verbose($on = true, $output = STDERR)
 ```
 
diff --git a/examples/multi_curl_proxy.php b/examples/multi_curl_proxy.php
new file mode 100644
index 0000000..45e3d16
--- /dev/null
+++ b/examples/multi_curl_proxy.php
@@ -0,0 +1,13 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+
+use \Curl\Curl;
+
+$multi_curl = new MultiCurl();
+$multi_curl->setProxy('someproxy.com', '9999', 'username', 'password');
+$multi_curl->setProxyTunnel();
+$multi_curl->addGet('https://httpbin.org/ip');
+$multi_curl->complete(function ($instance) {
+    var_dump($instance->response);
+});
+$multi_curl->start();
diff --git a/examples/multi_curl_proxy_socks5.php b/examples/multi_curl_proxy_socks5.php
new file mode 100644
index 0000000..e0d50f6
--- /dev/null
+++ b/examples/multi_curl_proxy_socks5.php
@@ -0,0 +1,16 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+
+use \Curl\MultiCurl;
+
+// If needed, start a SOCKS 5 proxy tunnel:
+//   $ ssh -D 8080 -C -N -v user@example.com
+
+$multi_curl = new MultiCurl();
+$multi_curl->setProxy('127.0.0.1:8080');
+$multi_curl->setProxyType(CURLPROXY_SOCKS5);
+$multi_curl->addGet('https://httpbin.org/ip');
+$multi_curl->complete(function ($instance) {
+    var_dump($instance->response);
+});
+$multi_curl->start();
diff --git a/src/Curl/MultiCurl.php b/src/Curl/MultiCurl.php
index b597df6..025710f 100644
--- a/src/Curl/MultiCurl.php
+++ b/src/Curl/MultiCurl.php
@@ -549,6 +549,79 @@ class MultiCurl
         }
     }
 
+    /**
+     * Set Proxy
+     *
+     * Set an HTTP proxy to tunnel requests through.
+     *
+     * @access public
+     * @param  $proxy - The HTTP proxy to tunnel requests through. May include port number.
+     * @param  $port - The port number of the proxy to connect to. This port number can also be set in $proxy.
+     * @param  $username - The username to use for the connection to the proxy.
+     * @param  $password - The password to use for the connection to the proxy.
+     */
+    public function setProxy($proxy, $port = null, $username = null, $password = null)
+    {
+        $this->setOpt(CURLOPT_PROXY, $proxy);
+        if ($port !== null) {
+            $this->setOpt(CURLOPT_PROXYPORT, $port);
+        }
+        if ($username !== null && $password !== null) {
+            $this->setOpt(CURLOPT_PROXYUSERPWD, $username . ':' . $password);
+        }
+    }
+
+    /**
+     * Set Proxy Auth
+     *
+     * Set the HTTP authentication method(s) to use for the proxy connection.
+     *
+     * @access public
+     * @param  $auth
+     */
+    public function setProxyAuth($auth)
+    {
+        $this-setOpt(CURLOPT_PROXYAUTH, $auth);
+    }
+
+    /**
+     * Set Proxy Type
+     *
+     * Set the proxy protocol type.
+     *
+     * @access public
+     * @param  $type
+     */
+    public function setProxyType($type)
+    {
+        $this->setOpt(CURLOPT_PROXYTYPE, $type);
+    }
+
+    /**
+     * Set Proxy Tunnel
+     *
+     * Set the proxy to tunnel through HTTP proxy.
+     *
+     * @access public
+     * @param  $tunnel boolean
+     */
+    public function setProxyTunnel($tunnel = true)
+    {
+        $this->setOpt(CURLOPT_HTTPPROXYTUNNEL, $tunnel);
+    }
+
+    /**
+     * Unset Proxy
+     *
+     * Disable use of the proxy.
+     *
+     * @access public
+     */
+    public function unsetProxy()
+    {
+        $this->setOpt(CURLOPT_PROXY, null);
+    }
+
     /**
      * Set Opt
      *
diff --git a/tests/PHPCurlClass/PHPMultiCurlClassTest.php b/tests/PHPCurlClass/PHPMultiCurlClassTest.php
index 00debce..7549584 100644
--- a/tests/PHPCurlClass/PHPMultiCurlClassTest.php
+++ b/tests/PHPCurlClass/PHPMultiCurlClassTest.php
@@ -2876,4 +2876,17 @@ class MultiCurlTest extends \PHPUnit\Framework\TestCase
         $multi_curl->start();
         $this->assertTrue($post_complete_called);
     }
+
+    public function testProxySettings()
+    {
+        $multi_curl = new MultiCurl();
+        $multi_curl->setProxy('proxy.example.com', '1080', 'username', 'password');
+
+        $this->assertEquals('proxy.example.com', $multi_curl->getOpt(CURLOPT_PROXY));
+        $this->assertEquals('1080', $multi_curl->getOpt(CURLOPT_PROXYPORT));
+        $this->assertEquals('username:password', $multi_curl->getOpt(CURLOPT_PROXYUSERPWD));
+
+        $multi_curl->unsetProxy();
+        $this->assertNull($multi_curl->getOpt(CURLOPT_PROXY));
+    }
 }