Abstract: A modular picture frame apparatus includes a plurality of housings. Each of the housings is configured to removably receive at least one picture. Each of the housings has a panel with a first edge, a second edge, a third edge, and a fourth edge. The first and second edges are positioned opposite of each other. A back side of the panel includes at least one mounting member to facilitate the mounting of the panel on a wall. An upper flange is attached to a front side of the panel adjacent to the first edge. A lower flange is attached to the front side adjacent to the second edge. Each of the upper and lower flanges has an elongated slot therein. A picture is positionable in the slots in the upper and lower flanges. At least one coupler removably couples together two of the housings.