| Year: | 1998 |
| Team: | Tulane Green Wave |
| Sport: | football |
| Conference: | Conference USA |
| Short Conf: | C-USA |
| Coachrank: | 7 |
| Aprank: | 7 |
| Record: | 12–0 |
| Conf Record: | 6–0 |
| Head Coach: | Tommy Bowden |
| Hc Year: | 2nd |
| Hc Games: | regular season |
| Head Coach2: | Chris Scelfo |
| Hc Games2: | interim; bowl game |
| Off Coach: | Rich Rodriguez |
| Oc Year: | 2nd |
| Off Scheme: | Spread option |
| Def Coach: | Rick Smith |
| Dc Year: | 2nd |
| Def Scheme: | 4–3 |
| Stadium: | Louisiana Superdome |
| Champion: | C-USA champion Liberty Bowl champion |
| Bowl: | Liberty Bowl |
| Bowl Result: | W 41–27 vs. BYU C-USA Champions |
The 1998 Tulane Green Wave football team represented Tulane University in the 1998 NCAA Division I-A football season. The Green Wave finished with a record of 12 wins and no losses, one of only two NCAA Division I-A teams to complete the season undefeated, the other being the BCS champion Tennessee Volunteers. It was the third undefeated and untied season in school history.
Despite finishing undefeated, the Green Wave were not considered for a BCS game, let alone a berth in the 1999 Fiesta Bowl—that year's national title game—because it was felt their strength of schedule was too weak to justify a berth in a higher-tier bowl. They did not play a single ranked team all season, and the only Automatic Qualifying conference member on their schedule was a Rutgers team that finished tied for sixth in the Big East. Moreover, they were the only team in Conference USA with fewer than five overall losses.
Prior to defeating Brigham Young in the Liberty Bowl, Tulane won the CUSA championship. The Green Wave finished the season ranked seventh in the nation in both the AP Poll and Coaches' Poll—in both cases, its highest rankings in school history since the 1939 Tulane football season when they were ranked No. 5 in the AP Poll.
The Green Wave won all of their games by six points or more. The combined 538 points set a single-season school record.[1]
=[2]
See also: 1998 NCAA Division I-A football rankings.
See also: 1998 Cincinnati Bearcats football team.
See also: 1998 SMU Mustangs football team.
See also: 1998 Navy Midshipmen football team.
See also: 1998 Southern Miss Golden Eagles football team and Battle for the Bell (Southern Miss–Tulane).
See also: 1998 Louisville Cardinals football team.
See also: 1998 Rutgers Scarlet Knights football team.
See also: 1998 Southwestern Louisiana Ragin' Cajuns football team.
See also: 1998 Memphis Tigers football team.
See also: 1998 Army Cadets football team.
See also: 1998 Houston Cougars football team.
See also: 1998 Louisiana Tech Bulldogs football team.
See also: 1998 BYU Cougars football team and 1998 Liberty Bowl.
| Player | Position | Round | Pick | NFL Team | |
| Shaun King | Quarterback | 2 | 50 | Tampa Bay Buccaneers | |
| Dennis O'Sullivan | Long Snapper | - | - | New York Jets / Houston Texans[3] |