Russell Conway Merrin (born 11 May 1945) is a former New Zealand cricketer who played first-class cricket for Canterbury from 1967 to 1975.
An opening bowler, Merrin took 7 for 61 in the first innings on his first-class debut for Canterbury in 1967-68 in a match against a New Zealand XI (essentially the national team at the time without its Canterbury representatives).
They remained his best first-class bowling figures.He also played Hawke Cup cricket for North Canterbury from 1964 to 1985, and was named in the Hawke Cup Team of the Century in 2011.
He took 6 for 41 when North Canterbury won the title from Manawatu in January 1967.