A Bachelor of Engineering (BE or BEng) or a Bachelor of Science in Engineering (BSc (Eng) or BSE)^[1] is an undergraduate academic degree awarded to a college graduate majoring in an engineering discipline at a higher education institution.

In the United Kingdom, a Bachelor of Engineering degree program is accredited by one of the Engineering Council's professional engineering institutions as suitable for registration as an incorporated engineer or chartered engineer with further study to masters level. In Canada, a degree from a Canadian university can be accredited by the Canadian Engineering Accreditation Board (CEAB). Alternatively, it might be accredited directly by another professional engineering institution, such as the US-based Institute of Electrical and Electronics Engineers (IEEE). The Bachelor of Engineering contributes to the route to chartered engineer (UK), registered engineer or licensed professional engineer and has been approved by representatives of the profession. Similarly Bachelor of Engineering (BE) and Bachelor of Technology (B.Tech) in India is accredited by All India Council for Technical Education. Most universities in the United States and Europe award bachelor's degrees in engineering through various names.

A less common and possibly the oldest variety of the degree in the English-speaking world is Baccalaureus in Arte Ingeniaria (B.A.I.), a Latin name meaning Bachelor in the Art of Engineering.Here Baccalaureus in Arte Ingeniaria implies excellence in carrying out the 'art' or 'function' of an engineer. Some South African universities refer to their engineering degrees as B.Ing. (Baccalaureus Ingenieurswese, in Afrikaans).

A Bachelor of Engineering degree will usually be undertaken in one field of engineering, which is sometimes noted in the degree postnominals, as in B.E., B.AE. (Aero), or B.Eng (Elec). Common fields for the Bachelor of Engineering degree include the following fields:

• Aerospace Engineering
• Agricultural Engineering
• Architectural Engineering
• Automotive Engineering
• Biological Engineering — including Biochemical, Biomedical, Biosystems and Biomolecular
• Chemical Engineering — deals with the process of converting raw materials or chemicals into more useful or valuable forms
• Clean Technology — use energy, water and raw materials and other inputs more efficiently and productively. Create less waste or toxicity and deliver equal or superior performance.
• Computer Engineering
• Computer Science and Engineering
• Civil Engineering — a wide-ranging field, including building engineering, civil engineering, construction engineering, industrial, manufacturing, mechanical, materials and control engineering
• Electrical and Computer Engineering/Electronic Engineering — very diverse field, including Computer Engineering, Communication/Communication systems engineering, Information Technology, Electrical Engineering, Electronics Engineering, Microelectronic Engineering, Microelectronics, Nanotechnology, Mechatronics, Software Engineering, Systems, Wireless and Telecommunications, Photovoltaic and Power Engineering
• Control Engineering — a relatively new and more specialized subfield of Electrical Engineering that focuses on integrating Electrical Controls and their programming.
• Engineering Management — the application of engineering principles to the planning and operational management of industrial and manufacturing operations
• Environmental Engineering — includes fields such as Environmental, Geological, Geomatic, Mining, Marine and Ocean Engineering
• Fire Protection Engineering — the application of science and engineering principles to protect people and their environments from the destructive effects of fire and smoke.
• Geological Engineering — a hybrid discipline that comprises elements of civil engineering, mining engineering, petroleum engineering and earth sciences.^[3][4]
• Geomatics Engineering — acquisition, modeling analysis and management of spatial data. Focuses on satellite positioning, remote sensing, land surveying, wireless location and Geographic Information Systems (GIS).^[5]
• Geotechnical Engineering — a combination of civil and mining engineering and involves the analysis of earth materials.
• Information Engineering — same as Information Technology.
• Industrial Engineering — studies facilities planning, plant layout, work measurement, job design, methods engineering, human factors, manufacturing processes, operations management, statistical quality control, systems, psychology and basic operations management
• Instrumentation Engineering — a branch of engineering dealing with measurement
• Integrated Engineering — a multi-disciplinary, design-project-based engineering degree program.
• Leather Engineering — an applied chemistry type based on leather and its application.
• Manufacturing Engineering: Includes methods engineering, manufacturing process planning, tool design, metrology, Robotics, Computer integrated manufacturing, operations management and manufacturing management
• Materials Engineering — includes metallurgy, polymer and ceramic engineering
• Marine Engineering — includes the engineering of boats, ships, oil rigs and any other marine vessel or structure, as well as oceanographic engineering. Specifically, marine engineering is the discipline of applying engineering sciences, including mechanical engineering, electrical engineering, electronic engineering and computer science, to the development, design, operation and maintenance of watercraft propulsion and on-board systems and oceanographic technology. It includes but is not limited to power and propulsion plants, machinery, piping, automation and control systems for marine vehicles of any kind, such as surface ships and submarines.
• Mechanical Engineering — includes engineering of total systems where mechanical science principles apply to objects in motion including transportation, energy, buildings, aerospace and machine design. Explores the applications of the theoretical fields of Mechanics, kinematics, thermodynamics, materials science, structural analysis, manufacturing and electricity
• Mechatronics Engineering - includes a combination of mechanical engineering, electrical engineering, telecommunications engineering, control engineering and computer engineering
• Mining Engineering — deals with discovering, extracting, beneficiating, marketing and utilizing mineral deposits.^[6][7]
• Nuclear Engineering — customarily includes nuclear fission, nuclear fusion and related topics such as heat/thermodynamics transport, nuclear fuel or other related technology (e.g., radioactive waste disposal) and the problems of nuclear proliferation. May also include radiation protection, particle detectors and medical physics.
• Petroleum Engineering — a field of engineering concerned with the activities related to exploration and production of hydrocarbons from the Earth's subsurface.
• Plastics Engineering — A vast field which includes plastic processing, mold designing...
• Process Engineering — the understanding and application of the fundamental principles and laws of nature that allow humans to transform raw material and energy into products that are useful to society, at an industrial level.
• Production Engineering — a term used in the UK and Europe similar to Industrial Engineering in North America. It includes the engineering of machines, people, processes and management. Explores the applications of the theoretical field of Mechanics.
• Textile Engineering — based on the conversion of three types of fiber into yarn, then fabric, then textiles
• Robotics and Automation Engineering  — relates all engineering fields for implementation in robotics and automation
• Structural Engineering — analyze, design, plan and research structural components, systems and loads, in order to achieve design goals including high-risk structures ensuring the safety and comfort of users or occupants in a wide range of specialties.
• Software Engineering — systematic application of scientific and technological knowledge, methods and experience to the design, implementation, testing and documentation of software
• Systems Engineering — focuses on the analysis, design, development and organization of complex systems