Jake Christopher Delhomme (/dəˈloʊm/ də-LOHM; born January 10, 1975) is an American former professional football player who was a quarterback in the National Football League (NFL). Delhomme played college football at the University of Louisiana at Lafayette, then known as the University of Southwestern Louisiana, before being signed by the New Orleans Saints as an undrafted free agent after the 1997 NFL draft. Delhomme began his professional career as a practice squad player with the Saints in 1997 and 1998 and played in the NFL Europe for two years in between NFL seasons. Returning to the Saints, Delhomme played his first NFL games in 1999. Delhomme played as the Carolina Panthers starting quarterback from 2003 to 2009. Delhomme held many of Carolina's quarterback records until Cam Newton broke most of them. Delhomme led the team to Super Bowl XXXVIII in his first season with Carolina. After his departure from Carolina, Delhomme also played for the Cleveland Browns in 2010 and Houston Texans in 2011.

Delhomme was born to Jerry and Marcia Delhomme, both Cajuns. Delhomme's grandfather bred horses, and his father was a jockey who began racing at eight years old. Delhomme has called horses his "first love", and he, his father, and his brother own and train thoroughbreds. Delhomme played both quarterback and defensive back for Teurlings Catholic; he made the all-state team in high school not as quarterback, but on defense. In addition, Delhomme was a scholar serving as Senior Beta Club president of his chapter in Louisiana.

Delhomme played college football for the University of Louisiana at Lafayette, then named the University of Southwestern Louisiana, his mother's alma mater. The only true freshman quarterback to start for a Division I school in 1993, his passer efficiency rating ranked second among NCAA freshmen quarterbacks. Playing on a team with future NFL wide receiver Brandon Stokley and offensive lineman Anthony Clement, the Ragin' Cajuns won the Big West Conference twice, and finished with three winning seasons. During his senior year, he led the Ragin' Cajuns to an improbable win over highly favored Texas A&M 29–22.

Delhomme finished his career as the school's all-time passing leader in yards and touchdowns. He started the last 43 games of his career, which was the longest among active quarterbacks at the time. Upon graduating, he was ranked 22nd in NCAA history for passing yards and 28th in total offense. He was inducted into the school's Athletic Hall of Fame in 2006.

Delhomme went undrafted in the 1997 NFL draft, but was later signed by the New Orleans Saints as an undrafted free agent. After spending the first season on the practice squad, he was assigned to the Amsterdam Admirals of NFL Europe as a backup quarterback to future NFL and Super Bowl MVP, Kurt Warner; Delhomme later said that "Being around someone as mature as Kurt was, that really inspired me". After another stint on the Saints' practice squad, he was sent back to NFL Europe, this time as a member of the Frankfurt Galaxy. The Galaxy operated under a rare two-quarterback strategy, utilizing both Delhomme and Pat Barnes; the pair was known as the "Double-Headed Quarterback Monster". The unorthodox strategy worked, as the Galaxy won World Bowl '99 over the Barcelona Dragons. Delhomme would later say about his time in Europe:

...I was able to go over and play, but we had some success and we just, we were a team. We were not the most talented team, but we just played together, had the right chemistry.

— Jake Delhomme,

Following his success in Europe, he was brought back to the New Orleans Saints as the full-time third-string quarterback. In his first NFL start against the Dallas Cowboys, he threw two touchdowns en route to a Saints victory, the team's third.