Dean Christopher Holdsworth (born 8 November 1968) is an English former professional football player, now manager of League Two side Aldershot Town. As a striker he scored 193 goals in 610 league games over a 22 year career. Despite playing for 16 clubs in 19 spells the majority of his goals and appearances came at Brentford, Wimbledon, and Bolton Wanderers. He is the twin brother of David Holdsworth.

As a player he started his career at Watford in 1986, where he spent three years before signing with Brentford, following a short loan spell. A highly successful three years followed before he was signed by Wimbledon in 1992. After an impressive five year spell he transferred to Bolton Wanderers. He spent six years at Bolton, before in 2003 joining Coventry City, Rushden & Diamonds and then back to Wimbledon. In 2004 he signed with Havant & Waterlooville, where he spent one season before joining Derby County. In 2006 he dropped out of the Football League for the final time, joining Weymouth. Short spells followed at Heybridge Swifts, Cambridge United, and Newport County.

The terms Old Boys and Old Girls are the usual expressions in use in the United Kingdom for former pupils or alumni of primary and secondary schools. While these are traditionally associated with independent schools, they are also used for some schools in the state sector. The term is also used for those who attended New Zealand schools, Sri Lankan schools, a few universities in the UK and, to a lesser extent, schools in Australia, Canada and South Africa.

The Old Boy form is given a specific identification for each school. Some schools use an adjectival form of the school name, such as "Old Etonian", "Old Harrovian", or "Old Reptonian" (old boys of Eton College, Harrow School, and Repton School). Some use a Latin form derived from the Latin name of the school or its location as "Old Novocastrian" (old boys of the Royal Grammar School, Newcastle upon Tyne). Some are based on the name of the founder, such as "Old Wykehamist" and "Old Alleynian" (for old boys of Winchester College, founded by William of Wykeham, and Dulwich College, founded by Edward Alleyn). Some are based on the school's location or street, such as "Old Gowers" (for University College School, originally in Gower Street). Many of the schools have histories dating back several hundred years, and the Old Boy forms may have been in use for a hundred years or more. Other more recently established schools have devised Old Boy names that are distinctive to prevent confusion with other schools. The tradition for many girls schools has been to use the term "Seniors" rather than "Old Girls".