Trash Island may refer to:
- Garbage patch, a collection of floating detritus formed from trash coming together in a mass in the ocean becoming like an island
- Thilafushi (Dhivehi: ތިލަފުށި), Maldives; an artificial island created as a landfill trash dump; so referred to as "Trash Island"
- Trash Island (album), a 2019 album by Drain Gang
- Trash Island, a record label; see Cold Visions
- Trash Island, a fictional location from the 2013 film Isle of Dogs (film)