Court dress comprises the style of clothes and other attire prescribed for members of courts of law. Depending on the country and jurisdiction's traditions, members of the court may wear formal robes, gowns, collars, or wigs. Within a certain country and court setting, there may be many times when the full formal dress is not used. Examples in the UK include many courts and tribunals including the Supreme Court of the United Kingdom, and sometimes trials involving children.

A wig is a head covering made from human or animal hair, or a synthetic imitation thereof. The word is short for "periwig". Wigs may be worn to disguise baldness, to alter the wearer's appearance, or as part of certain professional uniforms.