TR or tr may stand for:
Transport Layer Security (TLS), and its now-deprecated predecessor, Secure Sockets Layer (SSL), are cryptographic protocols designed to provide communications security over a computer network.
A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression which identifies products or services of a particular source from those of others, although trademarks used to identify services are usually called service marks.
Tramadol, sold under the brand name Ultram among others, is an opioid pain medication used to treat moderate to moderately severe pain.
Trinidad and Tobago ( (listen), ), officially the Republic of Trinidad and Tobago, is the southernmost island country in the Caribbean.
Translation is the communication of the meaning of a source-language text by means of an equivalent target-language text.
Paul Michael Levesque (born July 27, 1969), better known by the ring name Triple H, is an American business executive, professional wrestler, and actor.
The Christian doctrine of the Trinity (Latin: Trinitas, lit. 'triad', from Latin: trinus "threefold") holds that God is one God, but three coeternal consubstantial persons or hypostases—the Father, the Son (Jesus Christ), and the Holy Spirit—as "one God in three Divine Persons".