R+

R+ or R Plus may refer to:


 * R+ tree, a data structure in computer science
 * $$\mathbb{R}^{+}$$, the set of positive real numbers (or, depending on author, the set of non-negative real numbers)
 * Positive reinforcement, in behavioural psychology
 * Rammstein, German band
 * R Plus (musician), pseudonym of music producer Rollo Armstrong
 * Rocksmith +, a video game made by Ubisoft