Tekken 5 (鉄拳5) is a 2004 fighting game developed and published by Namco for arcades, before being ported to the PlayStation 2 in 2005. It is the fifth main game in the Tekken series, marking the tenth anniversary of the series. The game is set shortly after the events of Tekken 4 featuring a new antagonist named Jinpachi Mishima taking over the Mishima Zaibatsu while a sidestory focuses on the protagonist Jin Kazama as he faces several enemies from the G Corporation. The home version also contains a collector's edition of sorts, as it includes the arcade versions of Tekken, Tekken 2, Tekken 3, and StarBlade.

The game reverts several major gameplay changes introduced in Tekken 4, such as uneven stage terrain, in favor of a more fluid gameplay akin to the older games in the series. It is also the first game in the series to feature the ability to customize characters with accessories, clothing, and other aesthetic items purchased with in-game currency. There are 32 fighters to choose from, including five new fighters as well as Jin's alter-ego Devil Jin.

The game was upgraded to Tekken 5.1, which had mostly balance changes to the gameplay, and later received the update Tekken 5: Dark Resurrection which was released in 2005 and later ported to the PlayStation Portable (as Tekken: Dark Resurrection) and the PlayStation 3. Tekken 5 was a critical and commercial success, selling over 8.2 million copies including expansion. Critics praised the return of classic gameplay features and the large amount of replay value provided by the PlayStation 2 port though the final boss was criticized for being too powerful, while Jin's story mode was perceived as "boring" in comparison to the fighting game part. The sequel entitled Tekken 6 was released in 2007.