Timothy Forbes Timmons (born December 30, 1967) is an American retired Major League Baseball umpire.

After debuting in the National League as a substitute in late 1999, Timmons was promoted to the MLB umpiring staff in 2002.

Timmons played baseball at Muskingum College and then transferred to Ohio State University.

Timmons was promoted to replace Al Clark, who lost his job related to improper use of plane tickets.

[2][6] Timmons was behind the plate for Randy Johnson's 300th career win in Washington DC on June 4, 2009.