Alwyn Eato (13 February 1929 – 19 September 2008), born Alwyne Eato, was an English cricketer who played first-class cricket for Derbyshire between 1950 and 1955.

Eato was born in Duckmanton, Derbyshire. He was a Ferguson engineer^[1] in full-time occupation. He joined Derbyshire in the 1950 season and played part-time in the first and second elevens over the next eight years. He made his first-class debut for Derbyshire in June 1950. He played seven matches in the 1951 season and took a five-wicket innings against Leicestershire that year. He did National Service in 1952 and during the year played for the Army and the Royal Engineers.^[2] He rejoined Derbyshire in the 1953 season, in which he played eight matches. He played seven first-class games in the 1954 season and two in the 1955 season. His last second eleven game was in 1957.

Eato was right-arm medium-fast bowler and took 50 first-class wickets at an average of 28.58 and a best performance of 5–14. He was a right-handed batsman and played 28 innings in 25 first-class matches with an average of 9.56 and a top score of 44.^[3]

Eato died at Oxford at the age of 79.