R2 1792550 215755600 2008-05-29T15:48:34Z Poxnar 6839956 '''R2''' may refer to: * [[DVD region code]] 2 * <math>R^2</math>, a symbol for the [[coefficient of determination]] of a linear regression * R<sup>2</sup>, the two-dimensional [[vector space]] of real numbers in mathematics * [[R2 (SEPTA)]], a regional rail line in Philadelphia, Pennsylvania * [[R2 signalling]], a family of telephony protocols for line and register signalling * [[R-2 rocket]] * [[R2-D2]], a character from ''Star Wars'' films and books ** any [[astromech droid]] in the ''Star Wars'' fictional universe * [[BBC Radio 2]], a British radio station * [[Haplogroup R2 (Y-DNA)]] * [[Orenburg Airlines]] by IATA code * [[Patricio Rey y sus Redonditos de Ricota]] or R2, an Argentine rock band * [[Subaru R2]], a vehicle * [[Windows_Server_2003#Windows_Server_2003_R2|Windows Server 2003 R2]] *[[Resistance 2|R2]] an abbreviation to the video game Resistance 2 * ''[[Code Geass: Lelouch of the Rebellion R2]]'', a 2008 anime series {{disambig}} [[de:R2]] [[fr:R2]] [[ko:R2]] [[it:R2]] [[ja:R2]] [[pl:R2]] [[sv:R2 (olika betydelser)]]