A
lady's companion was a woman of
genteel birth who acted as a paid companion for women of rank or wealth. The term was in use in the
United Kingdom from at least the 18th century to the mid-20th century. It was related to the position of
lady-in-waiting, which by the 19th century was only applied to the female retainers of female members of the royal family. Ladies-in-waiting were usually women from the most privileged backgrounds who took the position for the prestige of associating with royalty, or for the enhanced marriage prospects available to those who spent time at
court, but lady's companions usually took up their occupation because they needed to earn a living.