​TEDDINGTON, an urban district in the Uxbridge parliamentary division of Middlesex, England, close to the Thames, 13 m. W.S.W. of St Paul's Cathedral, London, on the London and South-Western railway. Pop. (1901) 14,037. The district is residential and the town is a resort of visitors both to the river and to Bushey Park, which lies immediately south (see Hampton). The National Physical Laboratory, for making scientific investigations of industrial importance, and for mechanical testing, was opened in Bushey House in 1902.