Alp may refer to:
Alprazolam, available under the trade name Xanax, is a potent, short-acting anxiolytic of the benzodiazepine class.
Alpha Centauri (α Centauri, abbreviated Alpha Cen, α Cen) is the closest star system to the Solar System at a distance of 4.37 light-years (1.34 pc).
The Alps (/ælps/; French: Alpes [alp]; German: Alpen [ˈalpən]; Italian: Alpi [ˈalpi]; Romansh: Alps; Slovene: Alpe [ˈáːlpɛ]) are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately 1,200 kilometres (750 mi) across eight Alpine countries: Austria, France, Germany, Italy, Liechtenstein, Monaco, Slovenia, and Switzerland.
Alpha Phi Alpha (ΑΦΑ) is the first African-American, intercollegiate Greek-lettered fraternity. It was initially a literary and social studies club organized by Charles Cardoza Poindexter in the 1905–1906 school year at Cornell University, in Ithaca, New York.
The alpha helix (α-helix) is a common motif in the secondary structure of proteins and is a righthand-coiled or spiral conformation (helix) in which every backbone N-H group donates a hydrogen bond to the backbone C=O group of the amino acid located three or four residues earlier along the protein sequence.
An alphabet is a standard set of letters (basic written symbols or graphemes) that is used to write one or more languages based upon the general principle that the letters represent phonemes (basic significant sounds) of the spoken language.
Alpha Kappa Alpha (ΑΚΑ) was the first Greek-lettered sorority established by African-American college women.
AlphaGo versus Lee Sedol, or Google DeepMind Challenge Match, was a five-game Go match between 18-time world champion Lee Sedol and AlphaGo, a computer Go program developed by Google DeepMind, played in Seoul, South Korea between 9 and 15 March 2016. AlphaGo won all but the fourth game; all games were won by resignation.
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus.