Charles Robert "Bobby" Hamilton Jr. (born January 8, 1978 in Nashville, Tennessee) is an American racing driver. He formerly competed in the NASCAR Sprint Cup Series and Xfinity Series.

When he was 15 years old, he found a Ford Pinto in his driveway as a gift from his father (2004 NASCAR Craftsman Truck Series Champion Bobby Hamilton). They fixed up the car, and Hamilton began racing it on weekends at the local speedway. In 1998, he moved to the ARCA series where he earned four top-5 finishes in five races.

In 1998, Hamilton began to run some Busch Series races for the Sadler Brothers Racing No. 95 team. He made his debut at Rockingham in October, where he started in 27th position. He led four laps and finished 37th, three laps off the lead. He also made the race at Atlanta, had a 19th place start and 20th-place finish. Hamilton and the No. 95 Shoney's Inn team entered 1999 with a part-time schedule. In four races with the team, his best finish was 27th at Rockingham and Darlington. His best start was sixth at Daytona. He did not race again until the Hensley Motorsports No. 63 Exxon Superflo team had an opening. He ran six of the next seven races, beginning at Watkins Glen. In that seat, he set his best career finish of 21st at Pikes Peak. Hamilton then moved over to the No. 22 Air Jamaica Team owned by Carroll Racing. He qualified for all the races he attempted, and matched his career best start of 6th at Charlotte. At Homestead-Miami Hamilton started 15th and finished 9th.

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