Penyrheol may refer to:

• Penyrheol, Caerphilly
• Penyrheol, Pontypool
• Penyrheol, Swansea
  • Penyrheol (electoral ward), in Swansea
• Penyrheol, an area of Town, Merthyr Tydfil

• Ipomoea bona-nox
• Ipomoea lacunosa
• Ipomoea nyctelea
• Ipomoea oenotherae
• Ipomoea pescaprae
• Ipomoea pes-caprae subsp. brasiliensis
• Ipomoea purga
• Ipomoea sagittata
• Ipomoea simplex
• Ipomoea tastensis
• Ipomopsis globularis
• Ipomopsis longiflora
• Ipomopsis multiflora
• Ipomopsis polyantha
• Ipomopsis rubra
• Ipomopsis sancti-spiritus
• Ipomovirus
• IPON
• IPOOW
• I-pop
• Ipopeng
• I (Portuguese newspaper)
• Ipos: Book of Angels Volume 14
• IPO (station)
• Ipostparcels