Benjamin William Hilfenhaus, commonly known as Ben Hilfenhaus, was born in Ulverstone, Tasmania, Australia. An Australian cricketer known for his right-arm fast-medium bowling, Hilfenhaus specializes in swing bowling, particularly for his ability to move the ball away from right-handed batsmen. He has played domestic cricket primarily for Tasmania and is known by the nickname "Gentle Ben."

Hilfenhaus began his domestic career with the Tasmania University Cricket Club, where he garnered attention by taking over 39 wickets—then a club record. His impressive performances earned him a rookie contract with Tasmania for the 2002–2003 season. He was selected as part of the Commonwealth Bank Cricket Academy's 25-man intake in 2003, paving the way for professional development alongside other promising young players.

He made his first-class debut for Tasmania on October 17, 2005, at the age of 22 in a Pura Cup match, Australia's domestic first-class competition. The game ended in a draw, with Hilfenhaus claiming one wicket while conceding 125 runs. Despite the modest start, his potential was evident.