OTP

OTP may refer to

Businesses and organizations

 * OTP Bank (originally Országos Takarék Pénztár), independent financial services providers in central and eastern Europe
 * OTP Ingatlanpont, Hungarian real estate brokerage firm
 * Office of Technology Policy, U.S. government office
 * Office of Telecommunications Policy, U.S. government office 1970–1978
 * Office of Transport and Traffic Policy and Planning, department of the Thai Government
 * Old Town Pizza, pizzeria in Portland, Oregon, U.S.

Technology

 * One-time pad, in cryptography
 * One-time password or one-time PIN, a password or PIN that is valid for only one login session or transaction
 * One-time programmable memory, a type of programmable read-only memory (ROM) in electronics
 * Open Telecom Platform, a collection of middleware, libraries, and tools written in Erlang programming language
 * Opposite Track Path, in optical technology such as DVD or Blu-ray
 * Over-temperature protection, a feature of modern computer power supply units

Transportation

 * Henri Coandă International Airport (IATA: OTP), in Bucharest, Romania
 * On-time performance, the level of success of the service (such as a bus or train) remaining on the published schedule

Other uses

 * Oulun Työväen Palloilijat, a Finnish football and bandy club
 * "One true pairing", a term used in media fandom
 * "Outside the perimeter", used by residents of Atlanta to refer to suburban areas outside Interstate 285
 * Opioid Treatment Program, a legal designation for methadone clinics in the United States.
 * Office of the President (disambiguation)