Tiaa (15th century BC) was an Ancient Egyptian queen of the 18th dynasty, the wife of Amenhotep II and mother of Thutmose IV.

Tiaa or TIAA may refer to:

• Tiaa (princess) (15th century BC), Egyptian princess of the 18th dynasty, daughter of Thutmose IV
• Tia (princess) (13th century BC), or Tiaa, Egyptian princess of the 19th dynasty, daughter of Seti I
• Tiaa (wife of Seti II) (12th century BC), Egyptian noblewoman and wife of Seti II
• TIAA, an American financial services company
• Texas Intercollegiate Athletic Association (TIAA), American college sports conference that operated from 1909 to 1932
• Texas Intercollegiate Athletic Association (1976–1997) (TIAA), American college sports conference that operated from 1976 to 1999

This disambiguation page lists articles associated with the title Tiaa.
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