Samuel William Anthony Cadman (29 January 1877 – 6 May 1952) was an English cricketer who played for Derbyshire for over quarter of a century between 1900 and 1926.
Cadman made his debut for Derbyshire in May 1900 with an unnotable performance in a match against Lancashire.
He played in two further matches that year, making his bowling debut against Surrey when he took a single wicket.
Over the next few years Derbyshire remained close to or at the bottom of the points table despite his 6–41 against Hampshire in 1907, and centuries against Warwickshire in 1908 and against Leicestershire in 1909 and 1911.
He was batting alongside Leonard Oliver, Guy Jackson and Harry Storer and in 1924 he scored a century against Northamptonshire.