Tim may refer to:

Tim (Atlantis), a colonist and minor character in Opening Atlantis: New Hastings.
Tim (The Thing in the Woods), the young protagonist of "The Thing in the Woods".
Tim's mother (The Thing in the Woods), mother of the preceding.
Tim (Supervolcano), a minor character in Supervolcano: All Fall Down.
Tim Knox, an Atlantean soldier and minor character in The United States of Atlantis.