King of Gate is an annual single-elimination professional wrestling singles tournament held in the Japanese promotion Dragon Gate. It is the successor to El Numero Uno, previously held in Dragon Gate and Toryumon, although Uno was a round-robin tournament, as opposed to the single-elimination format used by King of Gate. In 2016, King of Gate adopted a round robin format with four separate blocks.

The 2005 King of Gate was a 26-man tournament held from December 23 to December 27 over 5 daily shows. Due to the uneven number of participants, six were given byes to the second round.

The 2006 King of Gate was a 15-man tournament held from December 10 to December 22 over four shows. The 2005 winner, Ryo Saito, received a bye to the second round.

The 2007 King of Gate was a 16-man tournament, held from December 1 to December 9 over seven shows.

The 2008 King of Gate tournament, a sixteen-man tournament, was held from December 2 to December 19, covering six shows. Before the tournament started, current Open the Dream Gate Champion Shingo Takagi pulled out, and was replaced by Madoka, who won a Battle Royal on November 29 for the 16th and final spot.

After being postponed in 2009, the King of Gate returned in April 2010. Sixteen wrestlers occupied two blocks of eight each. The first round of Block A was on April 3, and the first round of Block B on April 4. Quarterfinal action was on April 9 and 10. The semifinals and finals of the tournament occurred on April 14.

The 2011 King of Gate tournament, a sixteen-man tournament, was held from May 12 to May 21, covering six shows.

The 2012 King of Gate tournament, a sixteen-man tournament, took place from May 10 to May 19, covering six shows.