EastSiders is an American dark comedy web series created by Kit Williamson. It premiered on YouTube on December 14, 2012, and began streaming through Logo TV's website on April 23, 2013. Set in Silver Lake, Los Angeles, the series follows couple Thom (Van Hansis) and Cal (Williamson) as they struggle with infidelity and substance abuse. It also explores the relationship between Kathy (Constance Wu), Cal's best friend, and her boyfriend Ian (John Halbach) as they reach their six-month anniversary, making it Kathy's longest relationship.

The first two episodes of the first season premiered on YouTube, and the subsequent seven episodes were funded by a Kickstarter campaign. On April 2, 2013, it was announced that the series was picked up for distribution through Logo TV's website, and the remainder of the season premiered on April 23, 2013. The second season premiered on September 15, 2015, through Vimeo's on demand service. The series was later sold to Netflix, and the third season premiered November 28, 2017.

Since its release, the series has received numerous accolades, including two Indie Series Awards and several Daytime Emmy Award nominations.

The fourth and final season premiered on December 1, 2019.