John Clacy

John Berry Clacy (1810–80) was a Victorian architect whose practice was centred on Berkshire, England.

Most of Clacy's significant works are Gothic Revival buildings, but the Corn Exchange in Reading that he designed with F. Hawkes is in a style that Nikolaus Pevsner described as "free, debased Renaissance". Clacy's son had joined him in his practice by 1862. In 1868 Clacy and Son's practice was recorded as being in Reading.

• St. Mary's parish church, Burghfield, Berkshire, 1843
• King Alfred's Grammar School, Wantage, Berkshire (now Oxfordshire), 1849–50
• Corn Exchange, Reading, 1854 (with F. Hawkes)
• St. Helen's parish church, Dry Sandford, Oxfordshire, 1855
• Holy Trinity and All Saints parish church, Hawley, Hampshire: extensions, 1857
• St. Andrew's parish church, South Stoke, Oxfordshire: restoration and extensions, 1857
• St. James' parish church, Barkham, Berkshire, 1860–62 (with his son)

• Pevsner, 1966, page 107
• Pevsner, 1966, page 254
• Pevsner, 1966, page 130
• Pevsner & Lloyd, 1967, page 280
• Sherwood & Pevsner, 1974, page 773