diff --git a/.travis.yml b/.travis.yml
index cd691e49cf173..217108c6aa408 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -92,7 +92,7 @@ jobs:
         DEP_OPTS="NO_QT=1 NO_UPNP=1 DEBUG=1 ALLOW_HOST_PACKAGES=1"
         GOAL="install"
         BITCOIN_CONFIG="--enable-zmq --with-gui=qt5 --enable-glibc-back-compat --enable-reduce-exports --enable-debug CXXFLAGS=\"-g0 -O2\""
-# x86_64 Linux (xenial, no depends, only system libs, sanitizers: thread (TSAN))
+# x86_64 Linux (xenial, no depends, only system libs, sanitizers: thread (TSan))
     - stage: test
       env: >-
         HOST=x86_64-unknown-linux-gnu
@@ -102,14 +102,15 @@ jobs:
         RUN_FUNCTIONAL_TESTS=false # Disabled for now. TODO identify suppressions or exclude specific tests
         GOAL="install"
         BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=qt5 CPPFLAGS=-DDEBUG_LOCKORDER --with-sanitizers=thread --disable-hardening --disable-asm CC=clang CXX=clang++"
-# x86_64 Linux (no depends, only system libs, sanitizers: undefined (UBSAN) + integer)
+# x86_64 Linux (no depends, only system libs, sanitizers: address/leak (ASan + LSan) + undefined (UBSan) + integer)
     - stage: test
       env: >-
         HOST=x86_64-unknown-linux-gnu
         PACKAGES="clang llvm python3-zmq qtbase5-dev qttools5-dev-tools libssl1.0-dev libevent-dev bsdmainutils libboost-system-dev libboost-filesystem-dev libboost-chrono-dev libboost-test-dev libboost-thread-dev libdb5.3++-dev libminiupnpc-dev libzmq3-dev libprotobuf-dev protobuf-compiler libqrencode-dev"
         NO_DEPENDS=1
+        FUNCTIONAL_TESTS_CONFIG="--exclude wallet_multiwallet.py" # Temporarily suppress ASan heap-use-after-free (see issue #14163)
         GOAL="install"
-        BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=qt5 CPPFLAGS=-DDEBUG_LOCKORDER --with-sanitizers=integer,undefined CC=clang CXX=clang++"
+        BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=qt5 CPPFLAGS=-DDEBUG_LOCKORDER --with-sanitizers=address,integer,undefined CC=clang CXX=clang++"
 # x86_64 Linux, No wallet
     - stage: test
       env: >-
diff --git a/.travis/test_04_install.sh b/.travis/test_04_install.sh
index 75de71c583047..03a61ea9f8054 100755
--- a/.travis/test_04_install.sh
+++ b/.travis/test_04_install.sh
@@ -7,9 +7,11 @@
 export LC_ALL=C.UTF-8
 
 travis_retry docker pull "$DOCKER_NAME_TAG"
+export ASAN_OPTIONS=""
+export LSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/test/sanitizer_suppressions/lsan"
 export TSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/test/sanitizer_suppressions/tsan"
 export UBSAN_OPTIONS="suppressions=${TRAVIS_BUILD_DIR}/test/sanitizer_suppressions/ubsan:print_stacktrace=1:halt_on_error=1"
-env | grep -E '^(CCACHE_|WINEDEBUG|LC_ALL|BOOST_TEST_RANDOM|CONFIG_SHELL|(TSAN|UBSAN)_OPTIONS)' | tee /tmp/env
+env | grep -E '^(BITCOIN_CONFIG|CCACHE_|WINEDEBUG|LC_ALL|BOOST_TEST_RANDOM|CONFIG_SHELL|(ASAN|LSAN|TSAN|UBSAN)_OPTIONS)' | tee /tmp/env
 if [[ $HOST = *-mingw32 ]]; then
   DOCKER_ADMIN="--cap-add SYS_ADMIN"
 fi
diff --git a/.travis/test_06_script.sh b/.travis/test_06_script.sh
index 62d58ecf4d724..506d2b518cdd4 100755
--- a/.travis/test_06_script.sh
+++ b/.travis/test_06_script.sh
@@ -56,6 +56,6 @@ fi
 
 if [ "$RUN_FUNCTIONAL_TESTS" = "true" ]; then
   BEGIN_FOLD functional-tests
-  DOCKER_EXEC test/functional/test_runner.py --ci --combinedlogslen=4000 --coverage --quiet --failfast ${extended}
+  DOCKER_EXEC test/functional/test_runner.py --ci --combinedlogslen=4000 --coverage --quiet --failfast ${extended} ${FUNCTIONAL_TESTS_CONFIG}
   END_FOLD
 fi
diff --git a/test/functional/p2p_invalid_messages.py b/test/functional/p2p_invalid_messages.py
index 3ee67980a444e..65997a5f9d4c9 100755
--- a/test/functional/p2p_invalid_messages.py
+++ b/test/functional/p2p_invalid_messages.py
@@ -3,6 +3,7 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test node responses to invalid network messages."""
+import os
 import struct
 
 from test_framework import messages
@@ -66,7 +67,10 @@ def run_test(self):
         msg_at_size = msg_unrecognized("b" * valid_data_limit)
         assert len(msg_at_size.serialize()) == msg_limit
 
-        with node.assert_memory_usage_stable(increase_allowed=0.5):
+        increase_allowed = 0.5
+        if [s for s in os.environ.get("BITCOIN_CONFIG", "").split(" ") if "--with-sanitizers" in s and "address" in s]:
+            increase_allowed = 3.5
+        with node.assert_memory_usage_stable(increase_allowed=increase_allowed):
             self.log.info(
                 "Sending a bunch of large, junk messages to test "
                 "memory exhaustion. May take a bit...")
diff --git a/test/sanitizer_suppressions/lsan b/test/sanitizer_suppressions/lsan
new file mode 100644
index 0000000000000..57bc2c2beafa8
--- /dev/null
+++ b/test/sanitizer_suppressions/lsan
@@ -0,0 +1,10 @@
+# Suppress warnings about addCoin(...) leak in the CoinSelection benchmark
+leak:addCoin
+leak:bench_bitcoin
+
+# Suppress warnings triggered in dependencies
+leak:libcrypto
+leak:libqminimal
+leak:libQt5Core
+leak:libQt5Gui
+leak:libQt5Widgets