Rob Roy is a colloquial name for Scottish hero Robert Roy MacGregor[?] who has been described as the Scottish Robin Hood.
Rob Roy is a 1995 movie[?] starring Liam Neeson and
Jessica Lange.
It is also the title of an operetta by Reginald de Koven[?].
A "Rob Roy" is a cocktail made with Scotch whisky, sweet vermouth[?], and bitters[?], similar to a Manhattan.