“Mechanical engineers create and develop mechanical systems for all of humankind. Concerned with the principles of force, energy and motion, mechanical engineers use their knowledge of design, manufacture, and operational processes to advance the world around us — enhancing safety, economic vitality, and enjoyment throughout the world. Virtually every aspect of life is touched by mechanical engineering.” (The American Society of Mechanical Engineers).

957BTeknik Mesin (Mechanical Engineering) didefinisikan sebagai ilmu teknik yang mempelajari perancangan, produksi dan operasi mesin. Cakupan bidang profesi Teknik Mesin dapat diperluas meliputi seluruh siklus hidup produk, mulai studi kelayakan, perancangan, manufaktur, operasi, pemeliharaan, dan pembongkaran/dekomisi serta daur ulang, yang memanfaatkan ilmu-ilmu Teknik Mesin. Body of knowledge keilmuan Teknik Mesin meliputi bidang-bidang berikut: solid mechanics, thermal-fluid sciences, heat transfer, dynamics and control, design and manufacture, materials engineering, dan production process and systems.