Stuart Louis "Larry" Jacobus (December 13, 1894 – August 19, 1965) was a professional baseball pitcher from 1915 to 1927.

Jacobus was 6 feet, 2 inches (1.87 meters) tall and weighed 186 pounds (84 kilograms).

He started his professional baseball career in 1915 with the Ohio State League's Portsmouth Cobblers.

[1][4] Jacobus made five relief appearances for the Reds in July and August 1918 and went 0-1 with a 5.71 earned run average.

[1] On August 13, he was released, and the Pittsburgh Press reported that he "[was] not in shape to work and [was] of no use to the team.