Timothy D. Deratany (born October 19, 1939) is a former American politician in the state of Florida.

[1] He served in the Florida House of Representatives for the 47th district from 1978 to 1984, as a Republican.

[4] He was the first Republican Chairman of the Senate Finance and Tax Committee since reconstruction.

Deratany had served as the mayor of the Town of Indialantic from 1970 to 1977.

He has been a member of the Florida Council on Arts and Culture since 2010, having been appointed by Governor Charlie Crist.