Oboe and OBOE have several meanings:

• The oboe, a musical instrument of the wood-wind family
• Oboe (navigation), a World War II British aerial blind bombing targeting system
• Oboe (software), a digital music backup service from MP3tunes
• Off-by-one error (OBOE), a type of computer programming or mathematical error

Oboes are a family of double reed woodwind musical instruments. The most common oboe plays in the treble or soprano range. Oboes are usually made of wood, but there are also oboes made of synthetic materials. A soprano oboe measures roughly long, with metal keys, a conical bore and a flared bell. Sound is produced by blowing into the reed and vibrating a column of air. The distinctive oboe tone is versatile, and has been described as "bright". When the term oboe is used alone, it is generally taken to mean the standard treble instrument rather than other instruments of the family, such as the cor anglais (English horn) or the oboe d'amore.