Cognomen 伍伦 (伍伦 
, Woollen 
) , across the world, is a rare family name. The family name 伍伦 is characteristic of the United Kingdom, where it is a rare surname, New Zealand, and the United States. Measured by absolute frequency, it most frequently occurs in the United States, the United Kingdom, and China. Very seldom, 伍伦 is the forename as well as the last name.