Definition of welby:
(n) :
An unincorporated community and census-designated place in Adams County, Colorado, United States.
(n) :
A locality and site of a medieval village in Melton borough, Leicestershire, England (OS grid ref SK7320).
(n) :
A village and civil parish in South Kesteven district, Lincolnshire, England (OS grid ref SK9738).
(n) :
A small town in Wingecarribee Shire, New South Wales, Australia.
(n) :
A habitational surname.