Fritz Guy (born 1930) is a Seventh-day Adventist theologian and Research Professor of Philosophical Theology at La Sierra University in Riverside, California. He has worked as a college and university professor, an academic administrator, and a church pastor. In recent years Guy has espoused progressive Adventist theology, with lectures and articles exploring the temporality of God, the hope of universal salvation, the theology of creation, and the morality of same-sex relationships.