diff --git a/talk/base/sharedexclusivelock_unittest.cc b/talk/base/sharedexclusivelock_unittest.cc
index 46b7fdfdc2..e280aa28a8 100644
--- a/talk/base/sharedexclusivelock_unittest.cc
+++ b/talk/base/sharedexclusivelock_unittest.cc
@@ -148,7 +148,8 @@ class SharedExclusiveLockTest
   int value_;
 };
 
-TEST_F(SharedExclusiveLockTest, TestSharedShared) {
+// Flaky: https://code.google.com/p/webrtc/issues/detail?id=3318
+TEST_F(SharedExclusiveLockTest, DISABLED_TestSharedShared) {
   int value0, value1;
   bool done0, done1;
   ReadTask reader0(shared_exclusive_lock_.get(), &value_, &done0);
diff --git a/talk/p2p/base/p2ptransportchannel_unittest.cc b/talk/p2p/base/p2ptransportchannel_unittest.cc
index fe22cb3e16..498fde9dca 100644
--- a/talk/p2p/base/p2ptransportchannel_unittest.cc
+++ b/talk/p2p/base/p2ptransportchannel_unittest.cc
@@ -1530,7 +1530,8 @@ TEST_F(P2PTransportChannelTest, TestDefaultDscpValue) {
 }
 
 // Verify IPv6 connection is preferred over IPv4.
-TEST_F(P2PTransportChannelTest, TestIPv6Connections) {
+// Flaky: https://code.google.com/p/webrtc/issues/detail?id=3317
+TEST_F(P2PTransportChannelTest, DISABLED_TestIPv6Connections) {
   AddAddress(0, kIPv6PublicAddrs[0]);
   AddAddress(0, kPublicAddrs[0]);
   AddAddress(1, kIPv6PublicAddrs[1]);
diff --git a/talk/p2p/base/port_unittest.cc b/talk/p2p/base/port_unittest.cc
index 804b61ec34..fc6d48c9a5 100644
--- a/talk/p2p/base/port_unittest.cc
+++ b/talk/p2p/base/port_unittest.cc
@@ -895,7 +895,8 @@ TEST_F(PortTest, TestLocalToSymNat) {
   TestLocalToStun(NAT_SYMMETRIC);
 }
 
-TEST_F(PortTest, TestLocalToTurn) {
+// Flaky: https://code.google.com/p/webrtc/issues/detail?id=3316.
+TEST_F(PortTest, DISABLED_TestLocalToTurn) {
   TestLocalToRelay(RELAY_TURN, PROTO_UDP);
 }