Sentai Filmworks, LLC (or simply as just Sentai) is an American entertainment company. Based in Houston, the company specializes in the dubbing and distribution of Japanese animation and Asian cinema and is one of five successors to ADV Films, others being Section23, Switchblade Pictures, Maiden Japan, and AEsir Holdings. It also runs its own post-production arm Sentai Studios.

The company's origins can be traced back to its predecessor A.D. Vision, which was founded in 1992 by video game fan John Ledford and Matt Greenfield. ADV collapsed due to low sales and eventually liquidated their assets in 2009. Ledford founded Sentai in 2008 and acquired the majority of ADV's titles. It was then acquired by New York City-based AMC Networks at the start of January 2022 and has been a subsidiary since then. Its offices are in the International District in Southwest Houston.

Despite its name, the company has no relation to and therefore has no involvement in any international distribution of the Super Sentai media franchise.

Origins of Sentai Filmworks go back to the early 1990s with the founding of its predecessor A.D. Vision. In 1990, John Ledford, a native of Houston, started a Japanese video game and video console import business. He was introduced to anime when he watched My Neighbor Totoro at his friend's suggestion. His friend, Matt Greenfield, born in Sacramento, California, ran a local anime club called Anime NASA. Both men would later establish A.D. Vision on August 17, 1992. Devil Hunter Yohko was ADV's first release, after Ledford contacted Toho about optioning for the rights to license the series.

In June 2006, the Japanese Sojitz Corporation acquired a 20% stake in ADV Films. This was done as a means for ADV Films to acquire more titles in the Japanese market. From this point on, virtually all titles that ADV acquired were with Sojitz's help. The following year, Sojitz announced that Japan Content Investments (JCI), Development Bank of Japan, and film distribution company KlockWorx, planned to contribute money to ADV, in return for equity in the company. Ledford was to remain the majority shareholder and CEO. JCI subsidiary ARM also planned to contribute money for ADV to use in acquiring new distribution licenses. The investment was to ADV Films to raise its output of new anime titles, which had dropped in 2006, back to previous levels or above. In return, ADV planned to assist Sojitz with the acquisition of North American and European content for importation into Japan. According to ADV, they also reportedly had "big plans" for its manga line.

However, in January 2008, ADV mysteriously removed a large number of titles from their website. Among the titles which were subsequently removed was Gurren Lagann, which had test disks sent out with dubbed episodes. As a result, ADV sued ARM Corporation and its parent Sojitz for a breach in a contract made previously. In the suit, the exact amount ADV paid to license twenty-nine titles was disclosed. The lawsuit was withdrawn and no ruling was made. That July, Funimation announced the acquisition of thirty of these titles licensed by Sojitz from ADV.

Ledford established Sentai Filmworks in 2008. Some of its first titles to be released were Clannad, Princess Resurrection, Indian Summer, Appleseed and Mahoromatic (formerly licensed by Geneon). On September 1, 2009, ADV went defunct and sold off its assets, which included transferring distribution rights to Section23 Films.

On July 4, 2013, during its industry panel at Anime Expo, Sentai Filmworks announced its plans to release a number of classic titles from Tatsunoko Production. The current list of released titles from the partnership include the original Gatchaman series and movie, Time Bokan: Royal Revival, and Casshan, and more titles followed.