Mentha canadensis (syn. M. arvensis var. canadensis) is a species of mint. The flowers are bluish or a slight violet tint. The plant is upright about 4 inches (10 cm) to 18 inches (46 cm) tall. Leaves grow opposite from each other, and flower bunches appear at the upper leaf axil. The mint grows in wet areas but not directly in water, so it will be found near sloughs, lake and river edges. Flowers bloom from July to August. The leaves have a distinct peppermint smell when pinched or crushed as the plant contains aromatic oils. Pick leaves at any time during plant growth, and they may be dried. Mint jelly is a popular preparation. To make mint tea, pour boiling water over a scant teaspoon full of dried leaves, or over 1/3 cup fresh leaves. Iced tea is also a treat. Mint leaf candy can also be made.

The related species Mentha canadensis is also included in Mentha arvensis by some authors as two varieties, M. arvensis var. glabrata Fernald (in reference to North American plants) and M. arvensis var. piperascens Malinv. ex L. H. Bailey (in reference to eastern Asian plants).