QOH Views 8 meanings found QOH is most often used in business to indicate the quantity of stock currently available, but it also appears in casual contexts such as card games referring to the Queen of Hearts and in medical notes meaning every other hour. Medical Every other hour Miscellaneous Queen Of Hearts Queenie of Halloweeny Academic & Science Shall I send a phasing signal for .... seconds? Quantification of Humans Quaternary Hydroxide Business Quantity on Hand Quanity On Hand