Mecklenburgh Square is a Grade II listed square in Bloomsbury, London. The Square and its garden were part of the Foundling Estate, a residential development of 1792–1825 on fields surrounding and owned by the Foundling Hospital. The Square was named in honour of King George III's Queen, Charlotte of Mecklenburg-Strelitz. It was begun in 1804, but was not completed until 1825. Russell Square tube station is located to the south-west of the square, and the railway termini King's Cross and St Pancras are a short walk north.