Jerome "Doc" Louis (ドック・ルイス Dokku Ruisu?) is a character from the Punch-Out!! series. A former heavyweight boxing champ, Doc became Little Mac's personal trainer, teaching him the ways of boxing and giving him words of support from the sidelines of the ring.

In Super Smash Bros. for Nintendo 3DS and Wii U

Doc Louis plays a supporting role during many of Little Mac's battles. When Little Mac performs a taunt on the Boxing Ring stage, Doc Louis will occasionally give him an encouraging and supportive comment from the background. Doc also appears in all three of Little Mac's Victory Poses.

In Smash Tour

Doc Louis appears as a board item in Smash Tour. Activating him increases the effect of stat boosts Little Mac picks up.