John James (c. 1673 – 15 May 1746) was a British architect particularly associated with Twickenham in west London, where he rebuilt St Mary's Church and also built a house for James Johnson, Secretary of State for Scotland, later Orleans House and since demolished. Howard Colvin's assessment of him was that of "a competent architect, but he lacked inventive fancy, and his buildings are for the most part plain and unadventurous in design".