"Christmas Waltz" is the tenth episode of the fifth season of the American television drama series Mad Men and the 62nd episode of the series overall. It is written by Victor Levin and Matthew Weiner, and directed by Michael Uppendahl. It originally aired on the AMC channel in the United States on May 20, 2012. While the episode was well-received, it was the lowest-rated episode of Mad Men since the penultimate episode of the third season. This episode also marks the first appearance of Paul Kinsey since the third season's finale "Shut the Door. Have a Seat".