OAD

Oad or OAD may refer to:

Science and technology

• Auditory processing disorder or obscure auditory dysfunction (OAD), an auditory condition
• Object-oriented analysis and design, a software engineering approach
• Office of Astronomy for Development, an office of the International Astronomical Union
• Open Access Directory, founded by Peter Suber and Robin Peek
• Original Acquisition Disk, in digital forensics

Other uses

• Original animation DVD, an anime release bundled with its source-material manga
• Oad (caste), a social group of South Asia
• Oad language, an Indo-Aryan language
• Oad Street, a hamlet in Kent, England
• Oad Swigart (1915–1997), American baseball player
• Ordo Augustiniensium Discalceatorum, a Catholic religious order
• Oxford American Dictionary