| Oscar Brockmeyer | |
| Fullname: | Oscar Bernard Brockmeyer |
| Birth Date: | November 13, 1883 |
| Birth Place: | St. Louis, Missouri, United States |
| Position: | Defender |
| Years1: | 1904 |
| Years2: | 1905 |
| Collegeyears1: | 1904 |
| Collegeyears2: | 1905 |
| Collegecaps1: | 4 |
| Collegegoals1: | 0 |
| College2: | Missouri Tigers |
| Nationalyears1: | 1904 |
| Nationalteam1: | United States |
| Nationalcaps1: | 4 |
| Nationalgoals1: | 0 |
Oscar Bernard Brockmeyer (November 13, 1883 – January 10, 1954) was an American amateur soccer player who competed in the 1904 Summer Olympics. He was the son of Dora (Luebbering) and Bernard Henry Brockmeyer, His Grandparents moved from Glane, Germany to St. Louis, Missouri. He had 4 brothers and 3 sisters. He is also the grandson of Johann Friedrich Lübbering.
In 1904 he was a member of the Christian Brothers College team, which won the silver medal in the soccer tournament. He played all four matches as a defender. Oscar graduated in 1904 at C.B.C and went to the University of Missouri in Columbia, Missouri, he had a scholarship there, and played soccer for the Varsity in 1905.[1]
When he came home, he went to work at the City Hall of St. Louis as a draftsman.
He married Florence Louise Hoevel (1883–1952) and they had the following children: