Mayday Parker/Spider-Girl (Marvel Comics) can manipulate surface energy to repel objects...
...and herself.
Bartholomew Kuma's (One Piece) Pad Cannon repels the air around him, sending a devastating shockwave toward his opponent at the speed of light and continues into the distance…
…even repelling air slashes like Zoro's 36 Pound Cannon...
...and powerful physical attacks...
...like Luffy's Gear Second enhance punches.
Eustace Kid (One Piece) repels scrap metal as cannonballs.
Anakin Skywalker/Darth Vader and Obi-Wan Kenobi (Star Wars) using Force Push on one another.