Rp

RP or rp may stand for:
* Ricky Ponting
* Received Pronunciation
* Relief pitcher, a baseball term
* Membership of the Royal Society of Portrait Painters (London)
* Repurchase agreement
* Reservation price
* Résidence Palace
* Retinitis pigmentosa
* Role-playing
* Republic Polytechnic, a polytechnic in Singapore
* RP-3, a rocket projectile
* RP, a small nut (climbing) used for rock climbing, named after Rowland Pauligk
* Rapid prototyping, a manufacturing and engineering process
* Rating Pending, the designation for a game that is in the process of being rated by the ESRB
*Red Phosphorus a phosphorus allotrope
* In aviation:
** Chautauqua Airlines, IATA airline designator
** Rocket Power
* In mathematics:
** Real projective plane
** Real projective space
** RP (complexity), a complexity class in computational complexity theory
* In geopolitics:
** Republic of Poland
** Republic of the Philippines
* In currency:
** Rupee, the common name for the currencies used in several countries, abbreviated Rp
** Rupiah
* In religion:
** Religious Programs Specialist, Religious Program Specialist
** Reformed Presbyterian, a member of one of the Reformed Presbyterian Churches
** Regulative principle
* In entertainment:
** Red Pikmin, version of Pikmin that appears in Pikmin, Pikmin 2, and Super Smash Bros. Brawl