RK may refer to:

Science and technology

Radial keratotomy Radial keratotomy (RK) is a refractive surgery, refractive surgical procedure to correct myopia (nearsightedness). It was developed in 1974 by Svyatoslav Fyodorov, a Russian Ophthalmology, ophthalmologist. It has been largely supplanted by newer, ...

, a surgical procedure on the eye *

Rhodopsin kinase Rhodopsin kinase (, ''rod opsin kinase'', ''G-protein-coupled receptor kinase 1'', ''GPCR kinase 1'', ''GRK1'', ''opsin kinase'', ''opsin kinase (phosphorylating)'', ''rhodopsin kinase (phosphorylating)'', ''RK'', ''STK14'') is a serine/threonine ...

, an enzyme *

r/K selection theory In ecology, selection theory relates to the selection of combinations of traits in an organism that trade off between quantity and quality of offspring. The focus on either an increased quantity of offspring at the expense of reduced individua ...

, in biology, relating to the trade-off between quantity and quality of offspring *

Runge–Kutta methods In numerical analysis, the Runge–Kutta methods ( ) are a family of Explicit and implicit methods, implicit and explicit iterative methods, List of Runge–Kutta methods, which include the Euler method, used in temporal discretization for the a ...

, in numerical analysis

Airlines

Royal Khmer Airlines Royal Khmer Airlines was a small airline based in Phnom Penh, Cambodia. It operated scheduled passenger services out of Phnom Penh International Airport and Angkor International Airport.Flight International 12–18 April 2005 History Final ...

(former IATA code: RK), ceased operations 2007 *

R Airlines R Airlines, legally incorporated as ''Skyview Airways Co. Ltd.'', was a Thai charter airline headquartered in the Don Mueang District, Bangkok and based out of nearby Don Mueang International Airport. It ceased operations on 18 February 2018. ...

(former IATA code: RK), ceased operations 2018 *

Ryanair UK Ryanair UK is a British low-cost airline. The airline is the UK subsidiary of the Low-cost carrier, low-cost Irish airline group Ryanair Holdings and a sister airline to Ryanair, Buzz (Ryanair), Buzz and Malta Air. It commenced operations in Mar ...

(IATA code: RK), UK based subsidiary airline of Ryanair

Other uses

Raising Kaine Raising Kaine (RK) was a leading liberal political blog in Virginia. It functioned as a group blog and community forum for Virginia netroots activists, primarily directed toward helping to elect Democrats and other liberals and progressives ...

, a defunct Virginia political blog *

Reichskommissariat () is a German word for a type of administrative entity headed by a government official known as a '' Reichskommissar'' (). Although many offices existed, primarily throughout the Imperial German and Nazi periods in a number of fields (ranging ...

, a historical Nazi territorial division *

Rangkasbitung railway station Rangkasbitung Station (RK) is a list of railway stations in Indonesia, railway station located in East Muara Ciujung, Rangkasbitung, Lebak Regency, Banten. It is the main station of Lebak Regency. This station has a small rail yard to keep passeng ...

, station code RK *

Ridwan Kamil Mochamad Ridwan Kamil (born 4 October 1971), alternatively Kang Emil or RK, is an Indonesian architect and politician who was the 15th Governor of West Java, the largest (most populous) province of Indonesia. He was also the List of mayors of ...

, former governor of

West Java West Java (, ) is an Indonesian Provinces of Indonesia, province on the western part of the island of Java, with its provincial capital in Bandung. West Java is bordered by the province of Banten and the country's capital region of Jakarta to t ...

province since 2018-2023

Science and technology

Airlines

Other uses

See also