NTB may refer to:
Organizations National Tire and Battery, an American brand of auto service centers Nations Trust Bank, a bank in Sri Lanka Norsk Telegrambyrå, a Norwegian press agency Nepal Tourism Board, Government agency of Nepal
Other uses Non-tariff barriers to trade Notodden Airport, Tuven, Norway, by IATA code Nusa Tenggara Barat, (West Nusa Tenggara) a province of Indonesia Net-top box, a type of set-top box NTB (band), a South Korean boyband NTB (explosive), a proposed explosive chemical