Anthony Nash may refer to:

Roy Maurice Keane (born 10 August 1971) is an Irish former footballer and manager. In his 18-year playing career, he played for Cobh Ramblers, Nottingham Forest, and Manchester United, before ending his career at Celtic. Keane was a dominating central-midfielder, noted for his aggressive and highly competitive style of play, an attitude which helped him excel as captain of Manchester United from 1997 until his departure in 2005, having joined the club in 1993. Keane helped United achieve a sustained period of success in more than 12 years at the club. He then signed for Celtic but retired as a player less than a year later.

He played at international level for much of his career, representing the Republic of Ireland over a period of 14 years, most of which he spent as captain. He played in every Republic of Ireland game at the 1994 FIFA World Cup, although he was sent home from the 2002 World Cup after an incident with national coach Mick McCarthy.

He was appointed manager of Sunderland shortly after his retirement as a player, and took the club from 23rd position in the Football League Championship in late August to win the division title and gain promotion to the Premier League. Keane's arrival was cited as the catalyst for Sunderland's recovery. He managed to keep Sunderland from relegation in the 2007–08 season, but in his second season as a top-flight manager he left his position with Sunderland in the relegation zone. In April 2009, he was appointed as manager of Ipswich Town, but was sacked by the club in January 2011 with them 19th in the Championship.