Trifid is Latin for "split into three parts" or "threefold" and may refer to:
Trifid (journal), a Czech-language periodical Trifid Nebula in the constellation Sagittarius Trifid cipher, a fractionated cipher
Distinguish from Triffid, a fictional dangerous mobile plant in the 1951 novel The Day of the Triffids by John Wyndham The Triffids, a popular Australian band named for the plant
See also The Day of the Triffids (disambiguation)