UNI Air (Chinese: 立榮航空; pinyin: Lìróng Hángkōng) is an airline based in Zhongshan, Taipei, Taiwan. It is a domestic and regional subsidiary of EVA Air. It was known as Makung International Airlines until 1996, when EVA Air took a majority share of the airline. In 1998, the airline merged with Great China Airlines and Taiwan Airways, which EVA Air also had interests in, to form UNI Airways (UNI Air).

The airline has had the largest market share in the domestic Taiwan market in recent years, and has expanded to include international flights. A few of its McDonnell Douglas MD-90 aircraft have been repainted and are flying for parent carrier EVA Air due to overcapacity. In recent years, Uni Air has launched services to international destinations from the southern Taiwanese port city of Kaohsiung. In 2007, the airline received permission to begin flights to Japan.

UNI Air has operated two-class services, with domestic business- and economy-class seating. Business-class passengers have access to EVA Air's Evergreen Lounges. UNI Air's predecessor, Makung International Airlines, operated a fleet of BAe 146 series jet aircraft. These aircraft were sold when Uni Air was formed. Uni Air's IATA Code is B7, its ICAO code is UIA, and its callsign is Glory. In 2012 Uni Air has created a new livery. It is painted on a MD-90 aircraft

Uni or UNI may refer to:

The atmosphere of Earth is a layer of gases surrounding the planet Earth that is retained by Earth's gravity. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation).

Atmospheric stratification describes the structure of the atmosphere, dividing it into distinct layers, each with specific characteristics such as temperature or composition. The atmosphere has a mass of about 5×10¹⁸ kg, three quarters of which is within about 11 km (6.8 mi; 36,000 ft) of the surface. The atmosphere becomes thinner and thinner with increasing altitude, with no definite boundary between the atmosphere and outer space. An altitude of 120 km (75 mi) is where atmospheric effects become noticeable during atmospheric reentry of spacecraft. The Kármán line, at 100 km (62 mi), also is often regarded as the boundary between atmosphere and outer space.