Cyril Cecil Smart (23 July 1898 – 21 May 1975) was an English cricketer who played for Glamorgan and Warwickshire County Cricket Clubs between 1920 and 1946, featuring in 236 first-class cricket matches as a right-handed batsman and occasional leg-break spin bowler. Smart, whose brother Jack was also a first-class cricketer and a Test match umpire, was considered by Wisden to be one of the "most explosive county batsmen" during the 1930s, and is well known for his then-world record hitting of thirty-two runs from a single over against Hampshire. He ended his career with the record number of sixes for any Glamorgan player at the time.