Kathleen Troia McFarland (born Kathleen M. Troia; July 22, 1951) is an American political candidate, former government official, and political commentator. She served as Deputy National Security Advisor under Michael Flynn for the first four months of the Trump administration. She was asked to step down by Flynn's successor H. R. McMaster; news of her pending nomination as U.S. Ambassador to Singapore was reported at the same time. President Trump nominated her in May 2017; she withdrew it in February 2018 due to concerns around her answers related to links between Trump associates and Russian officials, in particular about discussions between Flynn and Russian ambassador Sergey Kislyak.