A shield for a light emitting diode (LED) luminaire includes a frame mountable to the LED luminaire such that the shield is removable therefrom. A plurality of rows of shield surfaces contact the frame and have a first side that faces a row of LEDs located on the LED luminaire and an opposite second side. The first side has a fully or partially reflective surface. The plurality of rows of shield surfaces prevent light from the LEDs from reflecting toward the back of the LED luminaire. The shield may include notches for allowing removal of one or more of the plurality of rows of shield surfaces or a portion thereof from the frame and for customization of light distribution from the LED luminaire. The shield may also be cut lengthwise such that each of the plurality of rows of shield surfaces includes a partial shield surface and shields only a portion of a row of LEDs located on the LED luminaire.