Philip Boughton Chatwin (1873 – December 1964) was an architect in Birmingham, England.
From 1866 he worked with his father, architect J. A. Chatwin, and became his partner in 1897, in the firm Chatwin & Son.
All Souls' Church, Witton (consecrated 1907).
King Edward VI Handsworth girls' school (opened 1911).
St Mary, Moseley (nave and south aisle rebuilt 1910; repaired war damage 1952-54), Grade II listed
St Mary the Virgin, Acocks Green Church and Church Hall, Acocks Green (opened c. 1908)
Lloyds Bank, Five Ways, Birmingham (1908-9)
St. Faith and St. Laurence's Church, Harborne 1936-37
