Diminutive variant of Harold or Harry, from Germanic "heri" (army) and "wald" (ruler).
Harril is a diminutive variant of Harold or Harry, names rooted in Germanic elements meaning army and ruler. That ancestry gives the name a firm historical base even though the form itself is rare.
The shortened, altered ending softens the more formal originals and makes the name feel more intimate and slightly old-fashioned. As a given name, Harril has a compact, sturdy sound. It carries a little of the authority of Harry and Harold, but in a less common package.
The result is approachable without losing its older masculine weight. Harril feels like a regional or family-shaped variation, the sort of name that preserves a tradition while changing its contour.