Navenby lost many men during the two World Wars. The village war memorial, a rough hewn stone Celtic Cross mounted on a plinth with a three-stepped base, is in the churchyard of St Peter's. It was manufactured by Messrs G Maile & Son Ltd at a cost of £200, and unveiled in April 1921. On it are inscribed the names of the 22 casualties from the First World War and the 8 from the Second World War.
