John Franks Vallentin VC (14 May 1882 – 7 November 1914) was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces. Vallentin was the nephew of Brevet-Major John Maximilian Vallentin (1865–1901) and of the noted naturalist Rupert Vallentin (1859–1934). His grandfather Sir James Vallentin (1814–1870) was Knight Sheriff of London, and his cousin Archibald Thomas Pechey, the lyricist and author, adapted the family name for his nom de plume 'Valentine'.