PNA or Pna has a variety of meanings:

Science and engineering

* abbreviation for orchid genus '' Paphinia'' *

Pacific–North American teleconnection pattern The Pacific–North American teleconnection pattern (PNA) is a climatological term for a large-scale weather pattern with two modes, denoted positive and negative, and which relates the atmospheric circulation pattern over the North Pacific Ocean w ...

, a climatic phenomenon * Parisiensia Nomina Anatomica, the revision of anatomic nomenclature * Peanut agglutinin, a lectin specific for Gal-β(1-3)-GalNAc * Peptide nucleic acid, an artificially synthesized polymer similar to DNA or RNA. * Plastic neutral axis, an engineering value used in plastic section modulus * Pottery

Neolithic The Neolithic period, or New Stone Age, is an Old World archaeological period and the final division of the Stone Age. It saw the Neolithic Revolution, a wide-ranging set of developments that appear to have arisen independently in several part ...

A, a division of the Pottery Neolithic period in archaeology

Organizations

* Pakistan National Alliance *

Palestinian National Authority The Palestinian National Authority (PA or PNA; ar, السلطة الوطنية الفلسطينية '), commonly known as the Palestinian Authority and officially the State of Palestine,

, an administrative autonomous government in parts of the West Bank and the Gaza Strip * Project for Nuclear Awareness, a non-profit organization that advocates for the abolition of nuclear weapons, co-founded by John C. Haas * Polish National Alliance, a non-profit organization, the largest Polish – American Fraternal Benefit Society in USA offering life insurance and annuities. Founded in 1880, operates solely for the benefit of its members. *

Pa-O National Army The Pa-O National Army ( blk, ပအိုဝ်ႏစွိုးခွိုꩻတပ်မတောႏ, my, ပအိုဝ်းအမျိုးသားတပ်မတော်; abbreviated PNA) is a Pa-O insurgent group in Myanmar ...

* ''Partido Nueva Alianza'', the Spanish name for the New Alliance Party (Mexico) * Parties to the Nauru Agreement *

Pennsylvania NewsMedia Association The Pennsylvania NewsMedia Association is a trade group serving newspapers in Pennsylvania. The PNA seeks to "advance the business interests of Pennsylvania news media companies" and protect the "free and independent press." It represents Pennsylv ...

* Philippine Nurses Association * ''Prefectura Naval Argentina'', the Spanish name for the Argentine Naval Prefecture *

National Anticorruption Directorate The National Anticorruption Directorate ( ro, Direcția Națională Anticorupție (DNA)), formerly National Anticorruption Prosecution Office ( ro, Parchetul Național Anticorupție), is the Romanian agency tasked with preventing, investigating ...

, Romania; formerly, National Anticorruption Prosecution Office (PNA)

Computing

* HomePNA, a home-computer networking standard *

Personal navigation assistant A Personal Navigation Assistant (PNA) also known as Personal Navigation Device or Portable Navigation Device (PND) is a portable electronic product which combines a positioning capability (such as GPS) and navigation functions. Some PNA devices ...

(PNA)

Other

* Pacific Northern Airlines, acquired by Western Airlines in 1967 * Pamplona Airport * Partial nail avulsion, a treatment of ingrown toenails *

Philippine News Agency Philippine News Agency (PNA) is the official news agency of the Philippine government. PNA is under supervision and control of the News and Information Bureau, an attached agency of the Presidential Communications Operations Office. It was esta ...

* Prenuptial agreement, a marriage contract

Science and engineering

Organizations

Computing

Other

See also