- Matt Johnson
- Matt Johnston
- Matt Jones
- Matt Jones
- Matt Kane
- Matt Katz
- Matt Kaulig
- Matt Keene
- Matt Kelly
- Matt Kelty
- Matt Keshian
- Matt Kessler
- Matt Kever
- Matt Kiefer
- Matt Killebrew
- Matt Kim
- Matt Kington
- Matt Kinsey
- Matt Kirmayer
- Matt Klauser
- Matt Klein
- Matt Klein
- Matt Klinger
- Matt Kogan
- Matt Koran
- Matt Koven
- Matt Kraus
- Matt Kraus
- Matt Kretschmer
- Matt Ksiazek
- Matt LaFiandra
- Matt Landry
- Matt Lapides
- Matt Larson
- Matt Laufer
- Matt LeCorgne
- Matt Legg
- Matt Lemaster
- Matt Levenson
- Matt Lewy