What does FO mean in Genealogy?

This page is about the meanings of the acronym/abbreviation/shorthand FO in the Academic & Science field in general and in the Genealogy terminology in particular.

Fidelity Oath

Academic & Science » Genealogy


Find a translation for FO in other languages:

Select another language:


What does FO mean?

field-grade officer, field officer, FO(noun)
an officer holding the rank of major or lieutenant colonel or colonel

see more »


Discuss this FO abbreviation with the community:


Use the citation below to add this abbreviation to your bibliography:


"FO." Abbreviations.com. STANDS4 LLC, 2016. Web. 27 Oct. 2016. <http://www.abbreviations.com/term/1371591>.