GLT may refer to:
Arts and entertainment
Girls' Last Tour, a manga and anime series by Tsukumizu
Transport Bombardier Guided Light Transit technology Gladstone Airport, Queensland, Australia Glenrothes with Thornton railway station, Scotland Great Lakes Transportation, an American company
Other uses Glatfelter, an American paper manufacturer Goal-line technology, in association football Great Lakes Theater, Cleveland, Ohio, US G-TELP Level Test, an English language test "Good Loyal Thots", a song by Odetari from the EP XIII Sorrows, 2023 Gay, lesbian, or transgender, a LGBTQ acronym variant