Ov or OV may refer to:
Gun laws and policies (collectively referred to as firearms regulation or gun control) regulate the manufacture, sale, transfer, possession, modification and use of small arms by civilians.
Overtime is a method of determining a winner in an ice hockey game when the score is tied after regulation.
Overtime or extra time is an additional period of play specified under the rules of a sport to bring a game to a decision and avoid declaring the match a tie or draw where the scores are the same.
Ovarian cancer is a cancer that forms in or on an ovary. It results in abnormal cells that have the ability to invade or spread to other parts of the body.
Overseas Pakistanis (Urdu: سمندر پار پاکستانی) refers to Pakistani people who live outside of Pakistan.
Overhead camshaft, commonly abbreviated to OHC, is a valvetrain configuration which places the camshaft of an internal combustion engine of the reciprocating type within the cylinder heads ("above" the pistons and combustion chambers) and drives the valves or lifters in a more direct manner compared with overhead valves (OHV) and pushrods.
Overseas Chinese (traditional Chinese: 海外華人/海外中國人; simplified Chinese: 海外华人/海外中国人; pinyin: Hǎiwài Huárén/Hǎiwài Zhōngguórén) are people of ethnic Chinese birth or descent who reside outside the territories of Mainland China, Hong Kong, Macau and Taiwan.
"Over the Rainbow" is a ballad composed by Harold Arlen with lyrics by Yip Harburg. It was written for the movie The Wizard of Oz and was sung by actress Judy Garland in her starring role as Dorothy Gale.