| 1998 Arizona Diamondbacks | ||
|---|---|---|
 | ||
| League | National League | |
| Division | West | |
| Ballpark | Bank One Ballpark | |
| City | Phoenix, Arizona | |
| Record | 65–97 (.401) | |
| Divisional place | 5th | |
| Owners | Jerry Colangelo Ken Kendrick | |
| General managers | Joe Garagiola Jr. | |
| Managers | Buck Showalter | |
| Television | FSN Arizona KTVK (3TV) (Thom Brennaman, Greg Schulte, Bob Brenly, Joe Garagiola, Al McCoy) | |
| Radio | KTAR (620 AM) (Thom Brennaman, Rod Allen, Greg Schulte) KSUN (Spanish) (Jose Tolentino, Ivan Lara) | |
| Stats | ESPN.com Baseball Reference | |
| ||
The 1998 Arizona Diamondbacks season was the franchise's 1st season in Major League Baseball and their 1st season at Chase Field in Phoenix, Arizona, as members of the National League West. They looked to contend in what was a strong National League West. They finished the season 33 games behind the National League Champion San Diego Padres with a record of 65–97, last in the division.
Jeff Suppan was the last player from the inaugural team still active in Major League Baseball when he retired in 2012.