GTU may refer to:
Education Gebze Technical University, in Turkey Georgian Technical University, in Georgia Graduate Theological Union, a consortium of independent California theological education institutions Gujarat Technological University, in Gujarat, India
Other uses Aghu Tharrnggala language (ISO 639:gtu) Gamma Theta Upsilon, an honour society in geography General Trades Union, a defunct American trade union Georgetown Municipal Airport Grand Touring Under, a class in the IMSA GT Championship Chevrolet Beretta GTU