Armacost
Armacost is a surname. It is a variant of the Americanized German surname Armagost. Notable people with the surname include:
- Audrey Mika Armacost, American singer and songwriter
- Austin Armacost, American TV personality and model
- Michael Armacost, American diplomat
- Samuel Armacost, American businessman, former CEO of BankAmerica Corporation
- Wilbur H. Armacost, American mechanical engineer