The Lees Baronetcy, of Longdendale in the County Palatine of Chester, was created in the Baronetage of the United Kingdom on 2 March 1937 for Sir Clare Lees. He notably served as Deputy Chairman of Martins Bank.

Lees baronets, of Longdendale (1937) Sir (William) Clare Lees, Kt., OBE, 1st Baronet (1874–1951) Sir William Hereward Clare Lees, 2nd Baronet (1904–1976) Sir (William) Antony Clare Lees, 3rd Baronet (1935–2018)

There is no heir to the baronetcy, thus the title is extinct.

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