Segment may mean:

• Segment (biology), a repeated part of the metazoan body.
• Segment (anthropology)
• Segment (linguistics), a consonant or vowel.
• Segment (broadcasting), part of a television or radio show.
• Segment (rocketry), a controlled rocket motor burn of specified duration.
• Segment (travel), a basis for billing travel, especially by aircraft.
• Line segment, part of a line that is bounded by two end points.
• Circular segment, the area which is "cut off" from the rest of the circle by a secant or a chord.
• Market segment, the smaller subgroups comprising a market.
• Memory segment, the portion of computer memory which may be addressed by a single index register.
• Image segment created in computer vision.
• String segment, the substring of a pattern delimited by two don't cares or one don't care and beginning or end of the pattern.
• Network segment, a part of a larger computer network.
• A Protocol data unit of the transport layer in computing.
• Citrus segment in horticulture.
• Something produced by segmentation (disambiguation).

Segment | Segment | セグメント