Thomas Keith may refer to:

• Thomas Keith (politician) (1863–1916), British Columbian politician
• Thomas Keith (surgeon) (1827–1895), Scottish surgeon and amateur photographer
• Thomas Keith (soldier) (died 1815), Scottish soldier who converted to Islam
• Tom Keith (1946–2011), American radio personality
• Thomas E. Keith, American filmmaker, educator and anti-sexist activist

• Tildenia glochinella
• Tildenia gudmannella
• Tildenia inconspicuella
• Tilden Lake, Ontario
• Tilden, Mark
• Tilden Middle School
• Tilden Middle School (disambiguation)
• Tilden, Missouri
• Tilden Park Golf Course
• Tilden Prizes
• Tilden, Thomas
• Tilden Trust
• Tilde (singer)
• Tildesley, Mark
• Tilde symbol
• Tildrakizumab-asmn
• Tildy, Zoltán
• Tileapp
• Tile art
• Tile based deferred rendering
• Tile based game
• Tilebased game
• Til Ebyad
• Til Ebyed
• Tile (computer graphics)