The National Counties Cricket Association Knockout Cup was started in 1983 as a knockout one-day competition for the National Counties in English cricket. At first it was known as the English Industrial Estates Cup, before being called the Minor Counties Knock Out Competition from 1986 to 1987, the Holt Cup from 1988 to 1992, the MCC Trophy from 1993 to 1998, the ECB 38-County Cup from 1999 to 2002 and the MCCA Knockout Trophy from 2003 to 2005. It was called the MCCA Trophy from 2006 and 2019 until the Minor Counties were rebranded as National Counties in 2020.

NCCA Knockout Trophy

Countries	England
Administrator	England and Wales Cricket Board
Format	Limited overs cricket
First edition	1983
Number of teams	20
Current champion	Norfolk
Most successful	Berkshire (8 titles)
Website	MCCA Knockout Trophy

From 1998 to 2002, the competition was contested by 38 teams and included a group stage. The traditional National counties, plus Huntingdonshire and the "cricket boards" of the 18 first-class counties, as well as a Channel Islands team. The 2002 competition, which was won by the Warwickshire Cricket Board, remains the only time a non-National county has won the competition. This format was discontinued after 2002 and the competition is again a purely National Counties affair.

The most successful county is Berkshire who have won the title eight times. The current champions, Norfolk, defeated Cheshire in August 2024, winning their sixth trophy.