Arnold "Ob" Long (born 18 December 1940 in Cheam) is a former English first-class cricketer. He played for Surrey between 1960 and 1975, then spent the remainder of his career at Sussex, whom he captained between 1978 and 1980. A wicketkeeper and left-handed batsman, Long claimed 1046 victims from his 452 games over a 20-year career. Of these, 805 were for Surrey between 1960 and 1975, putting him third in the county's all-time wicketkeeping records.