Lachlan Patrick McCaffrey (born 17 March 1990 in Sydney, Australia) is an Australian rugby union player for the Austin Gilgronis of Major League Rugby (MLR). His regular playing position is Number Eight. McCaffrey was a member of the Australia under 20 team that competed in the 2010 IRB Junior World Championship. He moved to English Premiership side London Welsh prior to the 2014–15 season. On 5 May 2015, Lachlan signed for Leicester Tigers for the upcoming 2015–16 season.Since signing for the Tigers, McCaffrey has gone on to become an integral part of the Leicester pack.