Prevalent among both Maharashtrian and Uttarakhand Brahmins
Govind Ballabh Pant, the first CM of Uttar Pradesh was a Maharashtrian Brahmin
Whereas Rishabh Pant the cricketer is from Uttarakhand
Mahajan is one
Common in Uttarakhand / Western UP if I am not wrong
But also common in Maharashtra
Which is very prevalent in Kashmir, and also in the Northern Plain
But equally popular in coastal Karnataka
So I am not counting those
E.g. Shandilya, Bhardwaj, etc
E.g. Deshpande, Kulkarni - popular in both Karnataka and Maharashtra