John Thomson (1690 – May 16, 1753) was an Irish-born Presbyterian minister, missionary, and church leader who served in the early Presbytery of Philadelphia, opposed the Great Awakening’s “New Side” excesses, and authored the influential Adopting Act of 1729 defending confessional subscription in the American church. He later preached and organized congregations on the Virginia and North Carolina frontier, becoming one of the first Presbyterian ministers to serve in those backcountry regions.