Meade-Waldo was born in Hever Castle and educated at Eton College and Magdalene College, Cambridge University. He spent his life managing the family's country estate, Stonewall, in Kent. He conducted fieldwork and collected birds in the Atlas Mountains of Morocco, the Canary Islands and Spain, the presumably-extinct Canary Islands oystercatcher Haematopus meadewaldoi being foremost among them. He was Vice-President of the BOU in 1923 and was an active member of the Zoological Society of London, the Royal Society for the Protection of Birds, the Society for the Protection of the Fauna of the Empire and the Society for the Establishment of Nature Reserves. He was also Justice of the Peace for Kent.