黑天神（天城体：कृष्ण；IAST：kṛṣṇa，英语：Krishna，字面意思为黑色，黑暗，或深蓝色），又译为奎师那、克里希那，他还有许多名字如哥文达。最早出现于史诗《摩诃婆罗多》中，是婆罗门教-印度教最重要的神祇之一，被很多印度教派别认为是至高无上的神，也是最具吸引力者。按照印度教的传统观念，他是主神毗湿奴或那罗延的化身。注意不要跟印度教另外一位神“大黑天”相混淆，“大黑天”是湿婆的化身而“黑天”是“那罗延”的化身。从20世纪60年代起奎师那信仰也在西方世界广为传播。

Krishna (/ˈkrɪʃnə/; Sanskrit: कृष्ण, Kṛṣṇa in IAST, pronounced [ˈkr̩ʂɳə]) is a God, worshipped across many traditions of religion in a variety of different perspectives. Krishna is recognised as the complete and or as the Supreme God in his own right. Krishna is one of the most widely revered and popular of all Hindu deities. Krishna's birthday is celebrated every year by Hindus on the eighth day (Ashtami) of the Krishna Paksha (dark fortnight) of the month of Bhadrapad in the Hindu calendar.