Godfrey Lampson Tennyson Locker-Lampson PC (19 June 1875 – 1 May 1946) was a British Conservative politician, poet and essayist.
The elder son of the poet Frederick Locker and his second wife Hannah Jane Lampson, daughter of Sir Curtis Lampson, he was educated at Cheam School, Eton and Trinity College, Cambridge. His younger brother Oliver Locker-Lampson was also a Conservative MP.
Locker-Lampson entered the Foreign Office in 1898, was appointed Third Secretary in December 1900, and was posted at The Hague and St Petersburg until he left the Diplomatic service in 1903. He then studied law at Lincoln's Inn and was called to the Bar in 1908, though never practised. He served with the Royal Wiltshire Yeomanry from 1914 to 1916 and was briefly ADC to Lt.-General Henry Hughes Wilson of IV Corps on the Western Front, during which time he was said to have used his diplomatic skills to effect a rapprochement between Wilson and Lloyd George.
He unsuccessfully contested Chesterfield at the 1906 general election, and served as Conservative Member of Parliament for Salisbury from 1910 to 1918, then Wood Green from 1918 to 1935.