A fence post centering assembly and method includes an elongated member that has a first end and a second end. A first head member and second head member are provided. Each of the first and second ends is removably engaged with one of the first and second head members. Each of the first and second head members includes a receiving slot. A first post is positionable in the receiving slot of the first head member and a second post is positioned in the receiving slot of the second head member to ensure a proper positioned between the first and second posts.