Mount Johnson, Johnson Mountain, or Johnson Peak may refer to:
== Places ==
Mount Johnson, Lower Canada, Province of Canada; former name of Mont-Saint-Grégoire, Quebec, Canada
Johnson Mountain, Montana, USA
=== Mountains ===
Johnson Peak, Tuolumne Meadows, Yosemite National Park, California, USA
Johnson Peak (Antarctica), Hart Hills, Ellsworth Land, Antarctica
Johnson Peaks, Mittlere Petermann Range, Wohlthat Mountains, Queen Maud Land, Antarctica
Johnson Mountain (Utah), Zion National Park, Utah
Johnson Mountain (Washington), Cascade Range, Washington State, USA
Mount Johnson (California)