Vincent Francis Callahan Jr. (October 30, 1931 – September 20, 2014) was an American politician who served for 40 years as a member of the Virginia House of Delegates.

In 1969, a Republican landslide year, Callahan, three other Republicans and Democrat Clive L. DuVal II, outpolled the second leading Democratic candidate Dorothy Shoemaker McDiarmid (who would be returned to the legislature in the next election).

[citation needed] Prior to 2007, he had last been challenged in 2001 by Dale Evans, a real estate agent, and won with 60.05% of the vote.

[citation needed] As the only Republican state legislator within the Capital Beltway, Callahan was considered a target by Democrats keen to secure their hold on Northern Virginia.

[citation needed] On September 20, 2014, Callahan died of West Nile virus at the age of 82.