Omarama is a small town (population 291 as of the 2018 census) at the junction of State Highways 8 and 83, near the southern end of the Mackenzie Basin, in the South Island of New Zealand. Omarama is in the Waitaki District, in the southern Canterbury region. The Ahuriri River is a short distance to the north of the township. Omarama is 30 km (20 minutes drive) southwest of Twizel, 40 km (30 minutes drive) southeast of Lake Ōhau and 32 km (21 minutes drive) northeast of the Lindis Pass.
Omarama is primarily a rural service centre, providing local farmers and other residents with necessities and facilities such as grocery shopping, fuel and mechanical services, as well as a post shop.
In more recent years these and similar services have expanded moderately, due to the increase in new residents and visitors, including anglers, artists, astronomers, sailplane enthusiasts, skiers and general tourists.
A significant proportion of permanent village residents are employees of, or contractors to, Meridian Energy Limited, a state-owned enterprise which is responsible for the nearby dams and powerstations that are part of New Zealand's hydroelectricity generation.
The Māori language name Ōmarama means "Place of Light", a reference to its extraordinarily pure and clear sky.
Omarama is described as a rural settlement by Statistics New Zealand, and covers . It is part of the larger Aviemore statistical area.
Omarama had a population of 291 at the 2018 New Zealand census, an increase of 21 people (7.8%) since the 2013 census, and an increase of 60 people (26.0%) since the 2006 census. There were 111 households. There were 147 males and 144 females, giving a sex ratio of 1.02 males per female, with 27 people (9.3%) aged under 15 years, 54 (18.6%) aged 15 to 29, 147 (50.5%) aged 30 to 64, and 66 (22.7%) aged 65 or older.
Ethnicities were 78.4% European/Pākehā, 4.1% Māori, 14.4% Asian, and 4.1% other ethnicities (totals add to more than 100% since people could identify with multiple ethnicities).
Although some people objected to giving their religion, 54.