Tatlock may refer to:

• Tatlock, Ontario, community in township of Lanark Highlands, Ontario

• John Strong Perry Tatlock (1876-1948), American literary scholar and medievalist
• Jean Tatlock (1914-1944), American psychiatrist, daughter of J.S.P. Tatlock

Fictional characters:

• In television series Coronation Street:
  • Albert Tatlock
  • Valerie Tatlock, a.k.a. Valerie Barlow
• Tatlock, any of several in film Miss Tatlock's Millions
• Tatlock, in two series-14 episodes of ChuckleVision television series

• Megastar (disambiguation)
• Megastardom
• Megastar Mammootty
• Megastar (product)
• Megastar (projector)
• Mega Station (disambiguation)
• Mega Station (Hyogo)
• Mega Station (Hyōgo)
• Megasternum
• Megastes
• Megastes coeligenalis
• Megasthenes' Herakles
• Megastopolia
• Megastylis
• Megas tzaousios
• Megasurcula
• Megasurcula carpenteriana
• Megasurcula tremperiana
• Megasus (album)
• Megas: XLR
• Megatainment
• Megat Amir Faisal
• Megat Amir Faisal Al-Khalidy Ibrahim
• Megatarsodes
• Megat Dewa