William Frederick Burr (born June 10, 1968) is an American comedian, actor, writer and podcaster. He has released multiple stand-up comedy specials, including You People Are All the Same (2012), I'm Sorry You Feel That Way (2014), Walk Your Way Out (2017) and Paper Tiger (2019). He received a Grammy Award nomination for Paper Tiger, as well as a Primetime Emmy Award nomination for the dark comedy series Immoral Compass (2021–present). In 2017, Rolling Stone ranked him at No. 17 on their list of the "50 Best Stand-Up Comics of All Time".

Burr has hosted the twice-weekly Monday Morning Podcast since 2007 and co-founded the All Things Comedy network in 2012. He also created, co-wrote, and voiced the lead character in the Netflix animated sitcom F Is for Family (2015–2021). His other notable roles include various characters in Chappelle's Show, Patrick Kuby in the AMC series Breaking Bad (2011–2013), Migs Mayfeld in the Disney+ series The Mandalorian (2019–present), and Ray Bishop in the film The King of Staten Island (2020). He made his feature-length directorial debut as the co-writer, director, and star of the comedy film Old Dads (2023).