The 2008 USL Premier Development League season was the 14th season of the PDL. The regular season started on April 26, 2008, and ended on July 20, 2008. The playoffs began on July 22, 2008, and ended with the PDL Championship Game on August 9, 2008.
Thunder Bay Chill finished the season as national champions, beating Laredo Heat on penalty kicks after a 1–1 tie in the PDL Championship game in Laredo, Texas on 9 August 2008.
Michigan Bucks finished with the best regular season record in the league, winning 13 out of their 16 games, suffering just one loss, and finishing with a +27 goal difference.
Abbotsford Rangers changed their name to the Abbotsford Mariners to reflect the name of their parent organization.
Los Angeles Storm changed their name to the Los Angeles Legends to reflect the name of their parent organization.
The expansion Austin Stampede were renamed the Aztex U23 after the Austin Aztex USL-1 franchise was announced for 2009 and acquired controlling interest in the PDL team.
New franchises
Nine franchises joined the league this year, including six brand new teams:
The top two teams in each division qualify for the playoffs. The Conference champion receives a bye into the Conference Semifinals, with the third place team from that division receiving a playoff berth.
The top two teams in each division qualify for the playoffs.
Playoffs
The Divisional Round for the Central Conference took place July 22–23, 2008, with the Conference Championships taking place between July 25–27. The PDL Semifinals took place on August 2, and the final was played on August 9.