The Puranas describe one known as the Trimurti consisting of Brahma, Shiva and Vishnu.
This concept is represented in Shinto tradition by the Mitso Tomoe and embodied in the Ayyavazhi tradition by Ayya Vaikundar, who is believed to be a Manu avatar of Narayana. Much of the modern Christian interpretation is due to the Cappadocian Fathers. The Christian version can be symbolized by the Scutum Fidei summarizing the first part of the Athanasian Creed, or by Borromean rings. The Puranas describe one known as the Trimurti consisting of Brahma, Shiva and Vishnu. FTP, identify this concept exemplified by Christianity's Father, Son, and Holy Spirit.
This concept is represented in Shinto tradition by the Mitso Tomoe and embodied in the Ayyavazhi tradition by Ayya Vaikundar, who is believed to be a Manu avatar of Narayana.
{Trinity} or {Triad} or {Triple}, or pretty much anything with {three}; accept {Trimurti} before mention in the question