R199 may refer to:

• Mercedes-Benz SLR McLaren, a car
• R199 road (Ireland), a regional road in Ireland

• P:MS
• PMS
• PMS2
• P. M. Sayeed
• P.M.Sayeed
• P M Sayeed
• PM/Scl
• PM-Scl
• PM-Scl complex
• PM-Scl Complex
• PM/Scl-complex
• PM/Scl complex
• PM/Scl-Complex
• PM/Scl Complex
• PM/Scl overlap syndrome
• PM-Scl overlap syndrome
• Pms (disambiguation)
• Pmsf
• PMSF
• P. M. S. Hacker
• P.M.S. Hacker
• PMSIA
• PMSL
• PM-SSc
• PM/SSc