Bloomsday may refer to:

• Bloomsday, a commemoration on 16 June in honor of James Joyce.
• Lilac Bloomsday Run, a road running event in Spokane, Washington.
• Bloomsday, episode nineteen, season two of the cartoon The Tick.

• Tondo (Historical State)
• Tondonba Singh
• Tondoshka
• Tondo, Xavier
• Tondrakianism
• Ton Duc Thang University
• Tondé, Sarah
• Tone Aaberge
• Tone Alis Groven Holmboe
• Tone Aqueduct
• Tone argument
• Toneatto
• Tone (band)
• TONE camera
• Tone Cerer
• Tone (DC band)
• Tone displacement
• Toneelschrijfprijs
• Tone fallacy
• Tonegawa Middle Management Blues
• Tone Gazzari
• Tone Glenn Küsel Gabriel
• Tone Glenn Küsel-Gabriel
• Tone Hatteland
• Tone It Down