1998 California 500

{{Use mdy dates|date=February 2025}}

{{Infobox NASCAR race report

| Type = CUST

| Description = Race 10 of 33 in the 1998 NASCAR Winston Cup Series season

| Race Name = California 500

| Details ref =

| Fulldate = {{Start date|1998|05|3}}

| Year = 1998

| Race_No = 10

| Season_No = 33

| Image =

| image-size =

| image-alt =

| Caption =

| Official name = California 500

| Location = California Speedway, Fontana, California

| Course_mi = 2.0

| Course_km = 3.23

| Distance_laps = 250

| Distance_mi = 500

| Distance_km = 804.672

| Weather =

| Avg = {{convert|140.22|mi/h}}

| Attendance =

| Pole_Driver = Jeff Gordon

| Pole_Team = Hendrick Motorsports

| Pole_Time =

| Most_Driver = Mark Martin

| Most_Team = Roush Racing

| Most_laps = 165

| Car = 6

| First_Driver = Mark Martin

| First_Team = Roush Racing

| Network = ABC

| Announcers = Bob Jenkins, Benny Parsons and Ned Jarrett

}}

The 1998 California 500 Presented by NAPA was a NASCAR Winston Cup Series race held on May 3, 1998, at California Speedway in Fontana, California. Contested over 250 laps on the {{convert|2|mile|adj=on}} speedway, it was the 10th race of the 1998 NASCAR Winston Cup Series season. Mark Martin of Roush Racing won the race.