Robert Charles Sproul (born February 13, 1939) is an American theologian, author, and pastor. He is the founder and chairman of
Ligonier Ministries (named after the
Ligonier Valley just outside
Pittsburgh, where the ministry started as a study center for college and
seminary students) and can be heard daily on the
Renewing Your Mind radio broadcast in the United States and internationally. "Renewing Your Mind with Dr. R.C. Sproul" is also broadcast on Sirius and XM
satellite radio. In late July 2012, a new Christian internet radio station called
RefNet (Reformation Network) was also announced by
Ligonier Ministries in an effort to reach "as many people as possible" where Internet access is available.