Tiara (disambiguation)
A tiara is a form of crown.
Tiara may also refer to:
Arts and music
- Tiara (album), by Seventh Wonder
 - "Tiara" (poem), by Mark Doty
 - A song by Eric Carr from the 1999 album Rockology
 - T-ara, South Korean girl group
 
Machines
- HMS Tiara (P351), British submarine
 - Tiara Yachts, US-based boat manufacturer
 - Tiara Air, Aruba-based airline
 - Continental Tiara series of aircraft engines
 - A name used in some markets for the Toyota Corona's T20 and T30 series sedan models
 - Proton Tiara, Malaysian car
 
Other
- TIARA (database), genomics database
 - Tiara Records, US-based record label
 
People with the name Tiara
- Tiara Andini (born 2001), Indonesian singer
 - Tiara Auxier, American politician
 - Tiara Jacquelina (born 1967), Malaysian actress
 - Tiara Malcom (born 1983), American college basketball coach
 - Tiara Rosalia Nuraidah (born 1993), Indonesian badminton player
 - Tiara Andini Prastika (born 1996), Indonesian cyclist
 - Tiara Purifoy, participant in American Idol (season 3)
 
Fictional character
- Lady Tiara, a character from the OVA series Shamanic Princess
 - Tiara from Lapis Re:LiGHTs
 - Tiara Royal Ivy from The Most Heretical Last Boss Queen
 - Tiara, a character from the video game Super Mario Odyssey