Mark Giacheri (born 1 February 1969 in Sydney) is a former Italian-Australian rugby union player and a current coach. He played as a lock. He first played for New South Wales Waratahs, from 1988/89 to 1996/97. He moved to Benetton Treviso in 1995/96, playing there for two seasons and being National Champion in 1996/97. Then, he would play two seasons at West Hartpool, in England, from 1997/98 to 1998/99, one season at CA Brive, in 1999/2000. Moving once more to England, he played for Sale Sharks (2000/01-2001/02), Rotherham Titans (2002/03) and Coventry R.F.C. (2003/04-2004/05), where he also played Rugby League with the Coventry Bears, and where he would finish his player career.