LTT is an initialism for the following: Libya Telecom & Technology Light the Torch, an American Rock Band formerly as Devil You Know Linux Trace Toolkit, for tracing computer program execution Lithuanian talonas, ISO 4217 code Lokmanya Tilak Terminus, a railway terminus in Mumbai, India Luyten Two-Tenths catalogue, a catalog of proper motions for stars Linus Tech Tips, a Canadian tech-related YouTube channel