Robert John Hailey (born 25 July 1951) is a former English cricketer.
Hailey was a right-handed batsman who bowled slow left-arm orthodox.
Hailey made his debut for Hertfordshire in the 1978 Minor Counties Championship against Norfolk.
His debut in List A cricket for Hertfordshire came against Hampshire in the 1983 NatWest Trophy.
He made 5 further List A appearances for the county, the last coming against Middlesex in the 1988 NatWest Trophy.