In Abrahamic religions, Gabriel (Bulgarian: Гавраил, Hebrew: גַּבְרִיאֵל, Modern Gavri'el Tiberian Gaḇrîʼēl - the strength of God; Latin: Gabrielus Serbian: Гаврило; Turkish: Cebrail; Greek: Γαβριήλ, Gabriēl; Arabic: جبريل, Jibrīl or جبرائيل Jibrail; Aramaic: Gabri-el, "God is my strong man/hero") is an archangel who serves as a messenger from God. He first appears in the Old Testament Book of Daniel, delivering explanations of Daniel's visions. Based on two passages in the Gospel of Luke, Gabriel foretold the births of both John the Baptist and Jesus. Christians of the catholic traditions refer to him as Saint Gabriel the Archangel.

Islamic views state that Jibrail was the medium through whom God revealed the Qur'an to Muhammad, and that he sent a message to most prophets, if not all, revealing their obligations. He is called the chief of the four favored angels and the spirit of truth. He is called, by Muslims, the created Holy Spirit (Islam) that spoke to Muhammad, which is not to be confused with the Holy Spirit of God in Christianity who is revered as God Himself. Gabriel is also mentioned in Bahá'í Faith texts, specifically in Bahá'u'lláh's mystical work Seven Valleys.

According to the Biblical verses which specifically refer to him, Gabriel is likened to a mortal male, but is sometimes portrayed as androgynous or female, as in some New Age beliefs or contemporary art imagery. In many nativity plays in schools, Gabriel is played by a female.