Koval (Коваль) literally translates as forge or blacksmith. The suffix -chuk denoted either a son of, or an apprentice to a blacksmith. It is somewhat similar in commonality to English surname Smith. It is also cognate with very popular Polish surnames Kowalczyk and Kowalski.
This page lists people with the surnameKovalchuk. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.