The Collaborative International Dictionary of English v.0.48:

Matcher \Match"er\, n.
   One who, or that which, matches; a matching machine. See
   under 3d Match.
   [1913 Webster]

WordNet (r) 3.0 (2006):

matcher
    n 1: someone who arranges (or tries to arrange) marriages for
         others [syn: matchmaker, matcher, marriage broker]