diff --git a/src/bench/bench.h b/src/bench/bench.h
index 445be56d9..0ffd3ef8e 100644
--- a/src/bench/bench.h
+++ b/src/bench/bench.h
@@ -7,7 +7,7 @@
 
 #include <cstdint>                               // for uint64_t
 
-#include <boost/function.hpp>                    // for function
+#include <functional>                            // for std::function
 #include <boost/preprocessor/cat.hpp>            // for BOOST_PP_CAT
 #include <boost/preprocessor/stringize.hpp>      // for BOOST_PP_STRINGIZE
 
@@ -62,7 +62,7 @@ namespace benchmark {
         bool KeepRunning();
     };
 
-    typedef boost::function<void(State&)> BenchFunction;
+    typedef std::function<void(State&)> BenchFunction;
 
     class BenchRunner
     {
diff --git a/src/httprpc.cpp b/src/httprpc.cpp
index 8ac6925ac..054c0d6fa 100644
--- a/src/httprpc.cpp
+++ b/src/httprpc.cpp
@@ -20,6 +20,7 @@
 
 #include <boost/algorithm/string.hpp> // boost::trim
 #include <boost/foreach.hpp> //BOOST_FOREACH
+#include <functional> // std::function
 
 /** WWW-Authenticate to present with 401 Unauthorized response */
 static const char* WWW_AUTH_HEADER_DATA = "Basic realm=\"jsonrpc\"";
@@ -30,7 +31,7 @@ static const char* WWW_AUTH_HEADER_DATA = "Basic realm=\"jsonrpc\"";
 class HTTPRPCTimer : public RPCTimerBase
 {
 public:
-    HTTPRPCTimer(struct event_base* eventBase, boost::function<void(void)>& func, int64_t millis) :
+    HTTPRPCTimer(struct event_base* eventBase, std::function<void(void)>& func, int64_t millis) :
         ev(eventBase, false, func)
     {
         struct timeval tv;
@@ -52,7 +53,7 @@ public:
     {
         return "HTTP";
     }
-    RPCTimerBase* NewTimer(boost::function<void(void)>& func, int64_t millis)
+    RPCTimerBase* NewTimer(std::function<void(void)>& func, int64_t millis)
     {
         return new HTTPRPCTimer(base, func, millis);
     }
diff --git a/src/init.cpp b/src/init.cpp
index 28a9e899e..2c670fe01 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -58,12 +58,13 @@
 #include <boost/algorithm/string/replace.hpp>
 #include <boost/algorithm/string/split.hpp>
 #include <boost/bind/bind.hpp>
-#include <boost/function.hpp>
 #include <boost/interprocess/sync/file_lock.hpp>
 #include <boost/lexical_cast.hpp>
 #include <boost/thread.hpp>
 #include <openssl/crypto.h>
 
+#include <functional>  // for std::function
+
 #if ENABLE_ZMQ
 #include "zmq/zmqnotificationinterface.h"
 #endif
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 1997a9aaa..3377cddb5 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -42,6 +42,7 @@
 #include <QTimer>
 #include <QStringList>
 #include <QThread>
+#include <functional>
 
 // TODO: add a scrollback limit, as there is currently none
 // TODO: make it possible to filter out categories (esp debug messages when implemented)
@@ -97,7 +98,7 @@ class QtRPCTimerBase: public QObject, public RPCTimerBase
 {
     Q_OBJECT
 public:
-    QtRPCTimerBase(boost::function<void(void)>& _func, int64_t millis):
+    QtRPCTimerBase(std::function<void(void)>& _func, int64_t millis):
         func(_func)
     {
         timer.setSingleShot(true);
@@ -109,7 +110,7 @@ private Q_SLOTS:
     void timeout() { func(); }
 private:
     QTimer timer;
-    boost::function<void(void)> func;
+    std::function<void(void)> func;
 };
 
 class QtRPCTimerInterface: public RPCTimerInterface
@@ -117,7 +118,7 @@ class QtRPCTimerInterface: public RPCTimerInterface
 public:
     ~QtRPCTimerInterface() {}
     const char *Name() { return "Qt"; }
-    RPCTimerBase* NewTimer(boost::function<void(void)>& func, int64_t millis)
+    RPCTimerBase* NewTimer(std::function<void(void)>& func, int64_t millis)
     {
         return new QtRPCTimerBase(func, millis);
     }
diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
index 29e38c107..481b2fd38 100644
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -23,6 +23,7 @@
 #include <boost/thread.hpp>
 #include <boost/algorithm/string/case_conv.hpp> // for to_upper()
 
+#include <functional>  // for std::function
 #include <memory> // for unique_ptr
 #include <unordered_map>
 
@@ -46,22 +47,22 @@ static struct CRPCSignals
     boost::signals2::signal<void (const CRPCCommand&)> PostCommand;
 } g_rpcSignals;
 
-void RPCServer::OnStarted(boost::function<void ()> slot)
+void RPCServer::OnStarted(std::function<void ()> slot)
 {
     g_rpcSignals.Started.connect(slot);
 }
 
-void RPCServer::OnStopped(boost::function<void ()> slot)
+void RPCServer::OnStopped(std::function<void ()> slot)
 {
     g_rpcSignals.Stopped.connect(slot);
 }
 
-void RPCServer::OnPreCommand(boost::function<void (const CRPCCommand&)> slot)
+void RPCServer::OnPreCommand(std::function<void (const CRPCCommand&)> slot)
 {
     g_rpcSignals.PreCommand.connect(boost::bind(slot, boost::placeholders::_1));
 }
 
-void RPCServer::OnPostCommand(boost::function<void (const CRPCCommand&)> slot)
+void RPCServer::OnPostCommand(std::function<void (const CRPCCommand&)> slot)
 {
     g_rpcSignals.PostCommand.connect(boost::bind(slot, boost::placeholders::_1));
 }
@@ -566,7 +567,7 @@ void RPCUnsetTimerInterface(RPCTimerInterface *iface)
         timerInterface = NULL;
 }
 
-void RPCRunLater(const std::string& name, boost::function<void(void)> func, int64_t nSeconds)
+void RPCRunLater(const std::string& name, std::function<void(void)> func, int64_t nSeconds)
 {
     if (!timerInterface)
         throw JSONRPCError(RPC_INTERNAL_ERROR, "No timer handler registered for RPC");
diff --git a/src/rpc/server.h b/src/rpc/server.h
index 84ca9c1b6..41f61c91d 100644
--- a/src/rpc/server.h
+++ b/src/rpc/server.h
@@ -17,7 +17,7 @@
 #include <stdint.h>
 #include <string>
 
-#include <boost/function.hpp>
+#include <functional>
 
 #include <univalue.h>
 
@@ -28,10 +28,10 @@ class CRPCCommand;
 
 namespace RPCServer
 {
-    void OnStarted(boost::function<void ()> slot);
-    void OnStopped(boost::function<void ()> slot);
-    void OnPreCommand(boost::function<void (const CRPCCommand&)> slot);
-    void OnPostCommand(boost::function<void (const CRPCCommand&)> slot);
+    void OnStarted(std::function<void()> slot);
+    void OnStopped(std::function<void()> slot);
+    void OnPreCommand(std::function<void(const CRPCCommand&)> slot);
+    void OnPostCommand(std::function<void(const CRPCCommand&)> slot);
 }
 
 class CBlockIndex;
@@ -119,7 +119,7 @@ public:
      * This is needed to cope with the case in which there is no HTTP server, but
      * only GUI RPC console, and to break the dependency of pcserver on httprpc.
      */
-    virtual RPCTimerBase* NewTimer(boost::function<void(void)>& func, int64_t millis) = 0;
+    virtual RPCTimerBase* NewTimer(std::function<void(void)>& func, int64_t millis) = 0;
 };
 
 /** Set the factory function for timers */
@@ -133,7 +133,7 @@ void RPCUnsetTimerInterface(RPCTimerInterface *iface);
  * Run func nSeconds from now.
  * Overrides previous timer <name> (if any).
  */
-void RPCRunLater(const std::string& name, boost::function<void(void)> func, int64_t nSeconds);
+void RPCRunLater(const std::string& name, std::function<void(void)> func, int64_t nSeconds);
 
 typedef UniValue(*rpcfn_type)(const JSONRPCRequest& jsonRequest);
 
diff --git a/src/scheduler.h b/src/scheduler.h
index 436659e58..439e56cc2 100644
--- a/src/scheduler.h
+++ b/src/scheduler.h
@@ -10,7 +10,7 @@
 // boost::thread / boost::function / boost::chrono should be ported to
 // std::thread / std::function / std::chrono when we support C++11.
 //
-#include <boost/function.hpp>
+#include <functional>
 #include <boost/chrono/chrono.hpp>
 #include <boost/thread.hpp>
 #include <map>
@@ -39,7 +39,7 @@ public:
     CScheduler();
     ~CScheduler();
 
-    typedef boost::function<void(void)> Function;
+    typedef std::function<void(void)> Function;
 
     // Call func at/after time t
     void schedule(Function f, boost::chrono::system_clock::time_point t);
diff --git a/src/torcontrol.cpp b/src/torcontrol.cpp
index 792d23a86..1ee5fb9ec 100644
--- a/src/torcontrol.cpp
+++ b/src/torcontrol.cpp
@@ -15,7 +15,7 @@
 #include <set>
 #include <stdlib.h>
 
-#include <boost/function.hpp>
+#include <functional>
 #include <boost/bind/bind.hpp>
 #include <boost/signals2/signal.hpp>
 #include <boost/foreach.hpp>
@@ -74,8 +74,8 @@ public:
 class TorControlConnection
 {
 public:
-    typedef boost::function<void(TorControlConnection&)> ConnectionCB;
-    typedef boost::function<void(TorControlConnection &,const TorControlReply &)> ReplyHandlerCB;
+    typedef std::function<void(TorControlConnection&)> ConnectionCB;
+    typedef std::function<void(TorControlConnection &,const TorControlReply &)> ReplyHandlerCB;
 
     /** Create a new TorControlConnection.
      */
@@ -106,9 +106,9 @@ public:
     boost::signals2::signal<void(TorControlConnection &,const TorControlReply &)> async_handler;
 private:
     /** Callback when ready for use */
-    boost::function<void(TorControlConnection&)> connected;
+    std::function<void(TorControlConnection&)> connected;
     /** Callback when connection lost */
-    boost::function<void(TorControlConnection&)> disconnected;
+    std::function<void(TorControlConnection&)> disconnected;
     /** Libevent event base */
     struct event_base *base;
     /** Connection to control socket */
diff --git a/src/txdb.cpp b/src/txdb.cpp
index b27ad8010..3f3ae1627 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -173,7 +173,7 @@ bool CBlockTreeDB::ReadFlag(const std::string &name, bool &fValue) {
     return true;
 }
 
-bool CBlockTreeDB::LoadBlockIndexGuts(boost::function<CBlockIndex*(const uint256&)> insertBlockIndex)
+bool CBlockTreeDB::LoadBlockIndexGuts(std::function<CBlockIndex*(const uint256&)> insertBlockIndex)
 {
     std::unique_ptr<CDBIterator> pcursor(NewIterator());
 
diff --git a/src/txdb.h b/src/txdb.h
index d9214ba61..b445b0de1 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -14,8 +14,7 @@
 #include <string>
 #include <utility>
 #include <vector>
-
-#include <boost/function.hpp>
+#include <functional>
 
 class CBlockIndex;
 class CCoinsViewDBCursor;
@@ -122,7 +121,7 @@ public:
     bool WriteTxIndex(const std::vector<std::pair<uint256, CDiskTxPos> > &list);
     bool WriteFlag(const std::string &name, bool fValue);
     bool ReadFlag(const std::string &name, bool &fValue);
-    bool LoadBlockIndexGuts(boost::function<CBlockIndex*(const uint256&)> insertBlockIndex);
+    bool LoadBlockIndexGuts(std::function<CBlockIndex*(const uint256&)> insertBlockIndex);
 };
 
 #endif // BITCOIN_TXDB_H