Doyle Monument, Monument at Jerbourg Point in Saint Martin, Guernsey.

The Doyle Monument is a granite column on a small hill at Jerbourg Point, in St Martin Parish on Guernsey's southeastern coast. Completed in 1953 at a cost of £1,400, it replaced a 96-foot granite tower built in 1820 that had an internal staircase to its summit and the inscription "Doyle - Gratitude". The present column honours Sir John Doyle, Lieutenant Governor of Guernsey from 1803 to 1816.

The original monument was built in 1820 but was demolished in 1944 during German occupation in the Second World War. It was reconstructed in 1953 as a simplified replacement of the earlier structure.

The original 1820 monument carried only the inscription "Doyle - Gratitude", a dedication made by the people of the island to their former Lieutenant Governor. A coloured engraving of it was reproduced in Festung Guernsey, the record of island defences compiled by the German occupiers who later demolished it.

The monument sits along a popular walking route with panoramic coastal views and can be reached via established paths around Jerbourg Point. Visitors should prepare for changing weather conditions typical of the Channel Islands.

The 1820 monument was 96 feet (29 m) tall, built of granite, with a staircase inside winding up to its summit and the inscription "Doyle - Gratitude". German engineers demolished it in 1944 because Batterie Strassburg, built nearby, needed a clear 360-degree field of fire; photographs of the demolition were taken.