Tuulos (, also ) is a former municipality of Finland. It was consolidated with Hämeenlinna on January 1, 2009. The administrative center of Tuulos was Syrjäntaka.
Neighbouring municipalities were Hauho, Hämeenlinna, Janakkala and Lammi.
It was located in the former province of Southern Finland and is part of the Kanta-Häme region. The municipality had a population of 1,536 (2003) and covered an area of 171.24 kmò of which 13.14 kmò is water. The population density is 9.7 inhabitants per kmò. The municipality is unilingually Finnish.