The Scottish and Irish surname Glenny is a topographic name for someone who lived in a valley, from the Gaelic term glean meaning “ Glen or Valley” or a habitational name from a place named with this word, such as Glen near Peebles. When found in Ireland the name is mainly centered in county Donegal in the northwest . The name is first recorded in the New World in 1809 when William Glenn arrived in Philadelphia. Today there are approximately 400 bearers of the name Glenny living in the United States.
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