Ohmer Family History

from an agent derivative of Middle High German ame, ome ‘standard measure’, hence an occupational name for someone who checked and sealed weights and measures. (Öhmer): topographic name (mostly Swiss), for someone who lived or owned a farm in a wider, flat part of a valley, a variant of Ebner. status or occupational name from Middle High German ebenære ‘arbitrator’, ‘judge’.

Source: Dictionary of American Family Names ©2013, Oxford University Press