Mauro Dal Sie (born 13 October 1967 in San Donà di Piave) is a former Italian rugby union player and a current coach. He played as a prop. Dal Sie first played at Amatori Rugby San Donà, where he was in the first team from 1985/86 to 1995/96. He then moved to Benetton Treviso, where he played from 1987/88 to 1999/2000. He won 3 titles of the Italian Championship, in 1996/97, 1997/98 and 1998/99, and the Cup of Italy, in 1997/98. He returned to Amatori Rugby San Donà, where he remained the final seasons of his career, finished in 2002/03. He is the coach of San Donà since 2003/04.