The third season of the American television drama series Masters of Sex premiered on July 12, 2015, and concluded on September 27, 2015, consisting of 12 episodes.

[5] Series regular Teddy Sears, who portrays Austin Langham, returned in a recurring role for the third season.

[11] In June 2015, it was announced that Sarah Silverman would reprise her role as Helen for a multi-episode arc in season 3.

[2] Robert Rorke of the New York Post praised the performances of Michael Sheen and Lizzy Caplan.

[29] For the 68th Primetime Emmy Awards, Allison Janney was nominated for Outstanding Guest Actress in a Drama Series.