The Tally Toor is the local name for a Martello tower in Leith, Edinburgh, Scotland. It is one of Scotland's three Martello towers, the other two being at Hackness and Crockness in Orkney. Originally built offshore on a rocky outcrop called the Mussel Cape Rocks, the land around it was subsequently reclaimed, and the building now lies, half-buried, in an industrial area on the eastern breakwater of Leith Docks.
Tally Toor was built in 1809 during the period of the Napoleonic Wars to defend the entrance of Leith Harbour at a cost 17,000 pounds. The tower was altered in 1850 to add a trefoil gun-emplacement and reorganise the interior accommodation.
Irish folk symbols carved on the stonework indicate that it was built by Irish navvies.[1]
Later, during the Second World War, the tower housed an anti-aircraft battery.
On 27 April 1964, it was designated as a Scheduled Ancient Monument by Historic Environment Scotland. Keys to the structure are with Forth Ports.