Jeff Ulbrich ( ) (b. on February 17, 1977 in San Jose, California) is a player in the NFL. He plays the linebacker position. He was drafted by the San Francisco 49ers in the 3rd round (86th overall) in the 2000 NFL Draft. He went to University of Hawaii.

Ulbrich is a converted baseball player with good instincts and intelligence. He is a big hitter and a high-effort type. He doesn't make many mistakes and does well in zone coverage. He is limited in man coverage.