R
Raddle
RAIL
RAISE
RAL
RALLY
RAMIS II
Rapid
Rapide
RapidGen
Rapidwrite
RAPT
RASP
RATEL
RATFIV
RATFOR
RATS
RAVE
RAWOOP-SNAP
R:BASE
R/BASIC[1]
RBASIC[2]
RBCSP
rc[1]
rc[2]
RCC[1]
RCC[2]
RCL
RDB
RDDL
RDF
RDL[1]
RDL[2]
Reactive C
Realizer
Real-Time Euclid
Real-Time Mentat
Real-Time Pascal
REBOL
REC
Recital
RECOL
RED
REDCODE
RediLisp
REDL
REDUCE
Refal
REF-ARF
Refine
Refined C
Refined FORTRAN
REG-SYMBOLIC
REGTRAL
RELATE/3000
Relational Language
RELATIVE
RELAX
RELAX NG
RELCODE
REL English
reMorse
RenderMan Shading Language
RENDEZVOUS
REPL
Required-COBOL
Retrieve
Reuse
Revised ALGOL 60
REX
REXX
Rez
RIGAL
Rigel
RIPscrip
RLIST
RLL
RMAG
ROADS
ROBEX
Robotalk
roff
ROME
ROPCO
Rosetta
Rossette
RPG
RPL-1
RPL[1]
RPL[2]
RPT
RSL
RTAG
RTC++
RT-CDL
RTE
RTL
RTL/1
RTL/2
RUBIX
Ruby[1]
Ruby[2]
Ruby[3]
RUFL
RUNCIBLE
RUNOFF
RUSH[1]
RUSH[2]
Russell
RUTH