Look up OB in Wiktionary, the free dictionary.

OB may refer to:

• OB (cartoon), a comic strip by Burton Silver
• OB star, in astronomy
• Ed O'Bradovich, former Chicago Bears defensive lineman, and current 670 The Score contributor
• Sam "O.B." O'Brien, a character in the British soap opera Hollyoaks
• John D. O'Bryant School of Mathematics & Science, a public magnet school in Boston, Massachusetts
• Obstetrics, as in OB/GYN
• Ocean Beach, California, a neighborhood of San Diego, California
• Odense Boldklub, a Danish football club
• Organizational behavior, an academic field of study
• Oriental Brewery, a South Korean brewery which produces the OB lagers
• Outside broadcasting, television broadcasting from a mobile studio, such as a van
• Outward Bound, an international outdoor education organization institution
• Astrakhan Airlines, IATA code OB
• Out of bounds, in golf
• Omar Bradley

See also

• Ob (disambiguation)
• Obi (disambiguation)
• Obie (disambiguation)

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