Otsa is a village in Lasva Parish, Võru County, in southeastern Estonia. It has a population of 137 (as of 2011) and an area of 8.8 km².

Oklahoma Tribal Statistical Area is a statistical entity identified and delineated by federally recognized American Indian tribes in Oklahoma that formerly had a reservation but do not now have a reservation in that state (an exception being the Osage Nation's retention of mineral rights on their reservation). Often, an OTSA will be that of the former Indian Reservation in Oklahoma. They are usually referred to as Tribal Jurisdictional Areas.

Otsa is a village in Lasva Parish, Võru County, in southeastern Estonia. It has a population of 137 (as of 2011) and an area of 8.8 km².

Oklahoma Tribal Statistical Area is a statistical entity identified and delineated by federally recognized American Indian tribes in Oklahoma that formerly had a reservation but do not now have a reservation in that state (an exception being the Osage Nation's retention of mineral rights on their reservation). Often, an OTSA will be that of the former Indian Reservation in Oklahoma. They are usually referred to as Tribal Jurisdictional Areas.