Within the UK and Ireland, the surname Maclennan most frequently occurs in Scotland where it is carried by 1 in every 1,744 people. The majority of those with the family name of Maclennan are to be found living in/around Highland (approx. 33% of all UK Maclennan's), Outer Hebrides and City of Edinburgh. The name can also be found in England with 1 in 47,241 people using it.
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