QL may refer to:
The Qliphoth/Qlippoth/Qelippot or Kelipot (Heb. קְלִיפּוֹת, the different English spellings are used in the alternative Kabbalistic traditions of Hermetic Qabalah and Jewish Kabbalah respectively), literally "Peels", "Shells" or "Husks" (from singular: קְלִיפָה Qliphah/Kelipah "Husk"), are the representation of evil or impure spiritual forces in Jewish mysticism, the polar opposites of the holy Sephirot.
The QLine (stylized as QLINE), originally known as M-1 Rail by its developers and the Woodward Avenue Streetcar by the Michigan Department of Transportation (MDOT), is a streetcar line under construction, to run along M-1 (Woodward Avenue) in Detroit, Michigan.
Qlik is a software company based in Radnor, Pennsylvania, United States. Qlik is the provider of QlikView and Qlik Sense, business intelligence & visualization software.
QLogic Corporation is a manufacturer of networking server and storage networking connectivity and application acceleration products, based in Aliso Viejo, California through 2016. QLogic’s products include Fibre Channel adapters, converged network adapters for Fibre Channel over Ethernet (FCoE), Ethernet network interface controllers, iSCSI adapters, and application-specific integrated circuits (ASICs).
QLab is a multimedia playback cue-based software designed for theatre and live entertainment.
Qloo (pronounced "clue") is a company that uses artificial intelligence (AI). An application programming interface (API) provides cultural correlations.
Qlimax is an annual event held by the Dutch event organizer, Q-dance. It is considered one of the leading hardstyle events, attracting nearly 30,000 people annually.
Qlipso Inc. is an Israeli-American technology company, which builds and operates multi-user content-sharing platforms for Flash-based media.
Isopropyl aminoethylmethyl phosphonite (NATO designation QL), also known as O-(2-diisopropylaminoethyl) O'-ethyl methylphosphonite, is a precursor chemical to the nerve agent VX.