Night of the Living Dead is inspired by the 1954 novel I Am Legend, which is based on vampire mythology. And although it's probably not a direct inspiration, it

Night of the Living Dead is inspired by the 1954 novel I Am Legend, which is based on vampire mythology. And although it's probably not a direct inspiration, it also reminds me of the chapter in the 1908 novel The House on the Borderland where the swine-things attack the house.