Trinity Theological Seminary is an ecumenical theological tertiary educational institution at Legon, in the Greater Accra Region of Ghana. The seminary was established in 1942 as ministerial training institution by three sponsoring denomination. The three denominations were the Methodist Church Ghana, Presbyterian Church of Ghana and the Evangelical Presbyterian Church. After 1966 two more churches, Anglican Diocesan Council of Ghana and the African Methodist Episcopal Zion Church joined the institution. Currently other non-sponsoring churches can also send their members to the institution for them to be trained. The institute is accredited by the National Accreditation Board.
The institute offers causes at the undergraduate, masters and doctor of philosophy levels.