Daniel James Cullen is a former Australian first-class cricketer who played for South Australia and Somerset in a career that lasted from 2004 to 2009. He was a right-arm off break bowler who appeared six times for Australia, and was touted as a promising prospect to replace Shane Warne. However, a number of unproductive seasons meant that he lost his national contract in 2008, and was dropped by South Australia in 2010, ending his first-class career. Cullen was a member of the Australian team that won the 2006 ICC Champions Trophy.