diff --git a/libs/ardour/ardour/session.h b/libs/ardour/ardour/session.h
index 67ba2eacb8..85a9bb2534 100644
--- a/libs/ardour/ardour/session.h
+++ b/libs/ardour/ardour/session.h
@@ -47,7 +47,6 @@
 #include <stdint.h>
 
 #include <boost/dynamic_bitset.hpp>
-#include <boost/scoped_ptr.hpp>
 #include <glibmm/threads.h>
 
 #include <ltc.h>
@@ -1553,7 +1552,7 @@ private:
 	bool                     loop_changing;
 	samplepos_t              last_loopend;
 
-	boost::scoped_ptr<SessionDirectory> _session_dir;
+	const std::unique_ptr<SessionDirectory> _session_dir;
 
 	void hookup_io ();
 	void graph_reordered (bool called_from_backend);
diff --git a/libs/ardour/ardour/ticker.h b/libs/ardour/ardour/ticker.h
index cf343924dd..04ac19eb8f 100644
--- a/libs/ardour/ardour/ticker.h
+++ b/libs/ardour/ardour/ticker.h
@@ -21,7 +21,6 @@
  */
 
 #include <boost/noncopyable.hpp>
-#include <boost/scoped_ptr.hpp>
 
 #include "pbd/signals.h"
 
diff --git a/libs/ardour/audiosource.cc b/libs/ardour/audiosource.cc
index 8441a9385a..80e48f6369 100644
--- a/libs/ardour/audiosource.cc
+++ b/libs/ardour/audiosource.cc
@@ -49,8 +49,6 @@
 #include <glib.h>
 #include "pbd/gstdio_compat.h"
 
-#include <boost/scoped_ptr.hpp>
-
 #include <glibmm/fileutils.h>
 #include <glibmm/miscutils.h>
 
diff --git a/libs/ardour/import.cc b/libs/ardour/import.cc
index 59708955bb..1a73351d0e 100644
--- a/libs/ardour/import.cc
+++ b/libs/ardour/import.cc
@@ -40,7 +40,6 @@
 #include "pbd/gstdio_compat.h"
 #include <glibmm.h>
 
-#include <boost/scoped_ptr.hpp>
 #include <boost/shared_array.hpp>
 
 #include "pbd/basename.h"
@@ -544,8 +543,7 @@ Session::deinterlace_midi_region (std::shared_ptr<MidiRegion> mr)
 		smf->session_saved(); //TODO:  should we just expose flush_midi() instead?
 
 		/* open the SMF file for reading */
-		boost::scoped_ptr<Evoral::SMF> smf_reader;
-		smf_reader.reset (new Evoral::SMF());
+		const std::unique_ptr<Evoral::SMF> smf_reader (new Evoral::SMF());
 		if (smf_reader->open (source_path)) {
 			throw Evoral::SMF::FileError (source_path);
 		}
@@ -647,7 +645,7 @@ Session::import_files (ImportStatus& status)
 		std::shared_ptr<ImportableSource> source;
 
 		const DataType type = SMFSource::safe_midi_file_extension (*p) ? DataType::MIDI : DataType::AUDIO;
-		boost::scoped_ptr<Evoral::SMF> smf_reader;
+		std::unique_ptr<Evoral::SMF> smf_reader;
 
 		if (type == DataType::AUDIO) {
 			try {
diff --git a/libs/ardour/wscript b/libs/ardour/wscript
index 6da16f8c45..30f6e861a3 100644
--- a/libs/ardour/wscript
+++ b/libs/ardour/wscript
@@ -364,7 +364,6 @@ def configure(conf):
     conf.write_config_header('libardour-config.h', remove=False)
 
     # Boost headers
-    autowaf.check_header(conf, 'cxx', 'boost/scoped_ptr.hpp')
     autowaf.check_header(conf, 'cxx', 'boost/ptr_container/ptr_list.hpp')
 
     if conf.env['WINDOWS_VST_SUPPORT'] == True:
diff --git a/libs/backends/jack/jack_audiobackend.cc b/libs/backends/jack/jack_audiobackend.cc
index 69e599d3c7..14e5362ee9 100644
--- a/libs/backends/jack/jack_audiobackend.cc
+++ b/libs/backends/jack/jack_audiobackend.cc
@@ -22,7 +22,6 @@
 #include <list>
 #include <math.h>
 
-#include <boost/scoped_ptr.hpp>
 #include <glibmm/timer.h>
 #include <glibmm/spawn.h>
 
diff --git a/libs/backends/jack/jack_connection.cc b/libs/backends/jack/jack_connection.cc
index 617fe48cbb..207c4add79 100644
--- a/libs/backends/jack/jack_connection.cc
+++ b/libs/backends/jack/jack_connection.cc
@@ -18,8 +18,6 @@
  */
 #include <iostream>
 
-#include <boost/scoped_ptr.hpp>
-
 #include <glibmm/timer.h>
 
 #include "pbd/epa.h"
@@ -63,7 +61,7 @@ JackConnection::JackConnection (const std::string& arg1, const std::string& arg2
 	 */
 
         EnvironmentalProtectionAgency* global_epa = EnvironmentalProtectionAgency::get_global_epa ();
-        boost::scoped_ptr<EnvironmentalProtectionAgency> current_epa;
+        std::unique_ptr<EnvironmentalProtectionAgency> current_epa;
 
         /* revert all environment settings back to whatever they were when
 	 * ardour started, because ardour's startup script may have reset
@@ -97,7 +95,7 @@ int
 JackConnection::open ()
 {
         EnvironmentalProtectionAgency* global_epa = EnvironmentalProtectionAgency::get_global_epa ();
-        boost::scoped_ptr<EnvironmentalProtectionAgency> current_epa;
+        std::unique_ptr<EnvironmentalProtectionAgency> current_epa;
 	jack_status_t status;
 
 	close ();
diff --git a/libs/backends/jack/jack_utils.cc b/libs/backends/jack/jack_utils.cc
index d9d89a0783..7ef20913c6 100644
--- a/libs/backends/jack/jack_utils.cc
+++ b/libs/backends/jack/jack_utils.cc
@@ -42,8 +42,6 @@
 #include <portaudio.h>
 #endif
 
-#include <boost/scoped_ptr.hpp>
-
 #include "pbd/gstdio_compat.h"
 #include <glibmm/miscutils.h>
 
diff --git a/libs/backends/portaudio/winmmemidi_input_device.h b/libs/backends/portaudio/winmmemidi_input_device.h
index 7fd830f7fa..3e7e1b728c 100644
--- a/libs/backends/portaudio/winmmemidi_input_device.h
+++ b/libs/backends/portaudio/winmmemidi_input_device.h
@@ -27,8 +27,6 @@
 
 #include <string>
 
-#include <boost/scoped_ptr.hpp>
-
 #include <pbd/ringbuffer.h>
 
 namespace ARDOUR {
@@ -95,7 +93,7 @@ private: // data
 	std::string m_name;
 
 	// can't use unique_ptr yet
-	boost::scoped_ptr<PBD::RingBuffer<uint8_t> > m_midi_buffer;
+	const std::unique_ptr<PBD::RingBuffer<uint8_t> > m_midi_buffer;
 	std::unique_ptr<uint8_t[]> m_sysex_buffer;
 };
 
diff --git a/libs/backends/portaudio/winmmemidi_output_device.h b/libs/backends/portaudio/winmmemidi_output_device.h
index 8ba96c1d88..7f3c8f59b3 100644
--- a/libs/backends/portaudio/winmmemidi_output_device.h
+++ b/libs/backends/portaudio/winmmemidi_output_device.h
@@ -27,8 +27,6 @@
 
 #include <string>
 
-#include <boost/scoped_ptr.hpp>
-
 #include <pbd/ringbuffer.h>
 
 #define MaxWinMidiEventSize 256
@@ -98,7 +96,7 @@ private: // Data
 	bool m_thread_running;
 	bool m_thread_quit;
 
-	boost::scoped_ptr<PBD::RingBuffer<uint8_t> > m_midi_buffer;
+	const std::unique_ptr<PBD::RingBuffer<uint8_t> > m_midi_buffer;
 };
 
 } // namespace ARDOUR
diff --git a/libs/pbd/openuri.cc b/libs/pbd/openuri.cc
index 648b60dbda..35666fc472 100644
--- a/libs/pbd/openuri.cc
+++ b/libs/pbd/openuri.cc
@@ -22,7 +22,6 @@
 #include "libpbd-config.h"
 #endif
 
-#include <boost/scoped_ptr.hpp>
 #include <string>
 #include <glibmm/spawn.h>
 
@@ -55,7 +54,7 @@ PBD::open_uri (const char* uri)
 	return cocoa_open_url (uri);
 #else
 	EnvironmentalProtectionAgency* global_epa = EnvironmentalProtectionAgency::get_global_epa ();
-	boost::scoped_ptr<EnvironmentalProtectionAgency> current_epa;
+	std::unique_ptr<EnvironmentalProtectionAgency> current_epa;
 
 	/* revert all environment settings back to whatever they were when ardour started
 	 */
diff --git a/libs/waveview/waveview/wave_view.h b/libs/waveview/waveview/wave_view.h
index f9b7175039..5a033bdb5a 100644
--- a/libs/waveview/waveview/wave_view.h
+++ b/libs/waveview/waveview/wave_view.h
@@ -23,8 +23,6 @@
 
 #include <memory>
 
-#include <boost/scoped_ptr.hpp>
-
 #include <glibmm/refptr.h>
 
 #include "ardour/types.h"
@@ -152,7 +150,7 @@ private:
 
 	std::shared_ptr<ARDOUR::AudioRegion> _region;
 
-	boost::scoped_ptr<WaveViewProperties> _props;
+	const std::unique_ptr<WaveViewProperties> _props;
 
 	mutable std::shared_ptr<WaveViewImage> _image;