Abstract: Disclosed is a folding ball mark repair tool for repairing a ball mark depression in a golf green resulting from impact of a golf ball landing on the green thereby leaving the green free of a surface irregularity that may adversely effect putting conditions. The ball mark repair tool comprises an elongated flat blade for insertion under a concave ball mark in greens turf for prying the turf upwardly for smoothing thereof. The blade has two parallel pointed prongs extending from an end thereof. An elongated flattened handle has a longitudinal central slot formed therein wherein the blade shank is pivotally disposed such that the blade may be pivoted to a storage position thereof wherein the blade is disposed within the slot and a working position thereof wherein the blade is approximately 180.degree. from the storage position extending out of the slot. A spring pivotally biases the blade to the working position. A latch is included whereby the blade may be releasably retained in the storage position.