Elizabeth Cackowski is an American actress, comedian, and comedy writer.

Cackowski began her comedy career at The Second City in Chicago where she was discovered and hired by Saturday Night Live. That is where she worked as a writer from 2003 to 2006. Since leaving SNL, she and Maggie Carey created an online series called The Jeannie Tate Show.

She appeared in feature films such as Forgetting Sarah Marshall and I Love You, Man. She also co-starred as "Byte" in the Adult Swim series Fat Guy Stuck in Internet in 2008 and as a housewife in "Infomercials" in 2014. In early 2009, Cackowski wrote for the short-lived ABC sitcom In the Motherhood. From 2009 to 2010, she worked as a writer and story editor on the NBC comedy series Community. She also wrote for the short-lived NBC sitcom Up All Night. She wrote 2 episodes of 2015 comedy The Last Man on Earth on Fox.

She also played the role of Wendy, the realtor in the comedy movie Neighbors (2014), and in its sequel Neighbors 2: Sorority Rising (2016).

Liz and her husband Akiva Schaffer have two children.