| Rob Stull | |
| Birth Date: | 5 September 1960 |
| Birth Place: | Fort Lauderdale, Florida, United States |
| Height: | 186 cm |
| Weight: | 79 kg |
| Sport: | Modern pentathlon, fencing |
Robert Ernest "Rob" Stull (born September 5, 1960) is an American modern pentathlete and épée fencer. He competed at the 1984, 1988 and 1992 Summer Olympics and placed 20th individually in 1988 and second with the modern pentathlon team in 1984 and fourth in 1992. After retiring from competitions Stull became a sports official. He is the managing director of the USA Pentathlon, a member of the United States Olympic Committee, and President of the Confederation of Modern Pentathlon for North America, Central America and the Caribbean.