The goal lines are the two shorter boundary lines located at each end of the field, running perpendicular to the touchlines. These lines, represented by the blue lines in the diagram, are placed equidistant from the corner flags and mark the edges of the inbounds area, helping to define the playing field. The goal lines also indicate where goalkeepers may position the ball when taking a goal kick, ensuring proper placement and fair play.

For standard games, the goal lines can be anywhere between 50 to 100 yards long, while for international games the dimension is 70-80 yards.