Osomatsu may refer to:

• Mr. Osomatsu
  • List of Mr. Osomatsu episodes
• Osomatsu-kun
• Hachamecha Gekijō

• XRL
• XRM-82
• XRN2
• X road
• X road (disambiguation)
• X roads
• X. robusta
• X. robustus
• X. roseum
• X. roseum (disambiguation)
• X (Royal Hunt album)
• XRR
• XRS
• XRS-2200(rocket engine)
• Xr series
• XRT (disambiguation)
• Xrt programming
• XRuby
• XRumer
• Xrun
• XRX (disambiguation)
• XRX (web application architecture)
• Xryspa
• Xs
• XS2F-1