Haaslava is a village located in Luunja Parish, Tartu County, Estonia.
Historically, Haaslava was also the name of a rural municipality (Estonian: vald) in Tartu County. This municipality existed as an independent local government unit until the administrative reform of Estonian local governments in 2017. During this reform, Haaslava Parish was merged with the neighboring Luunja Parish. As a result, the village of Haaslava is now part of the larger Luunja administrative area. The area is situated in southeastern Estonia, in close proximity to the city of Tartu.