Olaa (Olaʻa or ‘Ōla‘a) is a site name in Hawaii that may refer to:
Olaa Forest on Mauna Loa, in the Hawaiʻi Volcanoes National Park Olaʻa banana hedyleptan moth ʻOlaʻa peppered looper moth ʻOlaʻa flume on Mauna Loa Keaʻau, a Census-designated place in Hawaii formerly known as Ola'a
The acronym OLAA may refer to: Our Lady of the Angels Academy (OLAA)