2003 Las Vegas Gladiators season

The 2003 Las Vegas Gladiators season was the 7th season for the franchise. Before the season started, the Gladiators moved from East Rutherford, New Jersey, to Las Vegas, Nevada. They finished at 8–8, 3rd in the Eastern Division and lost by a score of 69-26 to the Arizona Rattlers in the first round of the playoffs. This was the Gladiators' only playoff appearance in Las Vegas.

Coaching
Frank Haege entered his second season as the head coach of the Gladiators.