The 2006 Football League Two play-off Final was a football match played at the Millennium Stadium, Cardiff on 28 May 2006, at the end of the 2005–06 season. It was the second League Two play-off final since the Football League's 2004 rebranding and the 20th play-off final in all at the fourth level of English football. The match determined the fourth and final team to gain promotion from League Two to League One, and was contested by Grimsby Town, who had finished fourth during the league season, and Cheltenham Town, who had finished fifth. The teams reached the final by defeating Lincoln City and Wycombe Wanderers respectively in the two-legged semi-finals. Steve Guinan scored the only goal of the final to ensure Cheltenham's return to the third level of English football after an absence of three seasons.