NPL

Sport

National Pickleball League of Champions Pros, an American professional pickleball league for senior players
National Pickleball League Australia, an Australian professional pickleball league
National Pool League, a defunct American pool league
Nepal Premier League, a professional cricket league

Namibia Premier League, the defunct top tier of football in Namibia
National Premier League, the top tier of football in Jamaica
National Premier Leagues, the second tier of men's football in Australia
- National Premier Leagues Women's, the second tier of women's football in Australia
Nigerian Premier League, the top tier of football in Nigeria
Northern Premier League, at the seventh and eighth tier of football in England
Northern Premier League (Tasmania), a third tier football league in Australia covering northern Tasmania
Norwegian Premier League, the top tier of football in Norway

Netscape Public License, a free software license
New programming language, the original name of PL/I by IBM in 1964
Nonprocedural language, by T.D. Truitt et al. in 1980
NPL programming language, a functional programming language by Rod Burstall and John Darlington in 1977
NORD Programming Language, an internal systems language used at Norsk Data
NPL network, a computer network from 1967 until 1986, a precursor to the world wide web

National Priorities List, an EPA list of hazardous waste sites in the United States
Nauru Pacific Line, the national shipping line of the Republic of Nauru
Non-Patent Literature, used before the United States Patent and Trademark Office
Non-performing loan, a loan close to, or in default
Novgorod First Chronicle (Novgorodskaia pervaia letopis’), the oldest extant Rus' chronicle of the Novgorod Republic
Nuclear pumped laser, a laser pumped with the energy of fission fragments