30 for 30 is the title for a series of documentary films airing on ESPN, its sister networks, and online highlighting interesting people and events in sports history. This includes four "volumes" of 30 episodes each, a 13-episode series under the ESPN Films Presents title in 2011–2012, and a series of 30 for 30 Shorts shown through the ESPN.com website. The series has also expanded to include Soccer Stories, which aired in advance of the 2014 FIFA World Cup, and audio podcasts.

William John Simmons III is an American podcaster, sportswriter, and cultural critic who is the founder and CEO of the sports and pop culture website The Ringer. Simmons first gained attention with his website as "The Boston Sports Guy" and was recruited by ESPN in 2001, where he eventually operated the website Grantland and worked until 2015. At ESPN, he wrote for ESPN.com, hosted his own podcast on ESPN.com titled The B.S. Report and was an analyst for two years on NBA Countdown.