diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -21,8 +21,6 @@
 #include <utilstrencodings.h>
 #include <walletinitinterface.h>
 
-#include <boost/thread.hpp>
-
 #include <cstdio>
 
 /* Introduction text for doxygen: */
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -37,7 +37,6 @@
 #endif
 
 #include <boost/filesystem/operations.hpp>
-#include <boost/thread.hpp>
 
 #include <QApplication>
 #include <QDebug>
diff --git a/src/test/checkqueue_tests.cpp b/src/test/checkqueue_tests.cpp
--- a/src/test/checkqueue_tests.cpp
+++ b/src/test/checkqueue_tests.cpp
@@ -7,8 +7,6 @@
 #include <validation.h>
 
 #include <atomic>
-#include <boost/test/unit_test.hpp>
-#include <boost/thread.hpp>
 #include <checkqueue.h>
 #include <condition_variable>
 #include <mutex>
@@ -16,6 +14,8 @@
 #include <thread>
 #include <vector>
 
+#include <boost/test/unit_test.hpp>
+
 #include <memory>
 #include <random.h>
 #include <unordered_set>
diff --git a/src/test/scheduler_tests.cpp b/src/test/scheduler_tests.cpp
--- a/src/test/scheduler_tests.cpp
+++ b/src/test/scheduler_tests.cpp
@@ -12,7 +12,6 @@
 #include <boost/random/mersenne_twister.hpp>
 #include <boost/random/uniform_int_distribution.hpp>
 #include <boost/test/unit_test.hpp>
-#include <boost/thread.hpp>
 
 #include <atomic>
 #include <thread>
diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h
--- a/src/test/test_bitcoin.h
+++ b/src/test/test_bitcoin.h
@@ -13,8 +13,6 @@
 #include <scheduler.h>
 #include <txmempool.h>
 
-#include <boost/thread.hpp>
-
 /**
  * Version of Boost::test prior to 1.64 have issues when dealing with nullptr_t.
  * In order to work around this, we ensure that the null pointers are typed in a
diff --git a/src/txdb.cpp b/src/txdb.cpp
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -14,8 +14,6 @@
 #include <uint256.h>
 #include <util.h>
 
-#include <boost/thread.hpp>
-
 #include <cstdint>
 
 static const char DB_COIN = 'C';
diff --git a/src/validation.cpp b/src/validation.cpp
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -46,7 +46,6 @@
 
 #include <boost/algorithm/string/join.hpp>
 #include <boost/algorithm/string/replace.hpp>
-#include <boost/thread.hpp>
 
 #include <atomic>
 #include <future>
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -13,7 +13,6 @@
 #include <utilstrencodings.h>
 #include <wallet/walletutil.h>
 
-#include <boost/thread.hpp>
 #include <boost/version.hpp>
 
 #include <cstdint>
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -19,8 +19,6 @@
 #include <wallet/rpcwallet.h>
 #include <wallet/walletdb.h>
 
-#include <boost/thread.hpp>
-
 #include <algorithm>
 #include <atomic>
 #include <cstdint>
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -18,7 +18,6 @@
 #include <utiltime.h>
 #include <wallet/wallet.h>
 
-#include <boost/thread.hpp>
 #include <boost/version.hpp>
 
 #include <atomic>