Ryan Matthew Duffield (born 20 June 1988) is a retired Australian professional cricketer, formerly contracted to Western Australia, Brisbane Heat and Perth Scorchers. Duffield was born in Narrogin, Western Australia. He played for Gosnells and Melville in the Western Australian Grade Cricket competition, and also played for Western Australia Under-23s in the 2009–10 Futures League. He took nine wickets in three Futures League matches, with a best of 4/50 against South Australia U23s, and a best of 28*, also against South Australia. In Futures League Twenty20s he took seven wickets in three games at an average of 9.29, a competition record, with a best of 3/22 against Australian Centre of Excellence. He did not bat. Duffield made his first-class debut for the Warriors in the Sheffield Shiel