Tiiu
# Tiiu

Tiiu is an Estonian feminine given name and may refer to:

* Tiiu Aro (born 1952), Estonian physician and politician
* Tiiu Asper (born 1983), Estonian judoka
* Tiiu Erelt (born 1942), Estonian linguist
* Tiiu Kera (born 1945), retired United States Air Force major general
* Tiiu Kuik (born 1987), Estonian fashion model
* Tiiu Kull (born 1958), Estonian botanist
* Tiiu Levald (born 1940), Estonian opera singer, pedagogue and music critic
* Tiiu Märss (born 1943), Estonian geologist and paleontologist
* Tiiu Parmas (1943–2011), Estonian tennis player
* Tiiu Nurmberg (born 1982), Canadian-Estonian alpine skier
