Vaccinium myrtilloides is a North American species of blueberry with common names including common blueberry, velvetleaf huckleberry, velvetleaf blueberry, Canadian blueberry, and sourtop blueberry.

Vaccinium myrtilloides is a low spreading deciduous shrub growing up to 50 centimetres (20 in) tall, often spreading to form small thickets. Young stems have stiff dense bristly hairs. The leaves are 1.5–6.5 cm (1⁄2–2+1⁄2 in) long, green, paler underneath with velvety hairs.

The flowers are white, bell-shaped, 5 millimetres (1⁄4 in) long. The fruit is a small sweet bright blue to dark blue berry.

It is diploid, with 24 total chromosomes.

It is common in much of North America, reported from all 10 Canadian provinces plus Nunavut and Northwest Territories, as well as from the northeastern and Great Lakes states in the United States. It is also known to occur in Montana and Washington.

Vaccinium myrtilloides grows best in open coniferous woods with dry loose acidic soils; it is also found in forested bogs and rocky areas. It is fire-tolerant and is often abundant following forest fires or clear-cut logging. Vaccinium myrtilloides hybridizes in the wild with V. angustifolium (lowbush blueberry).

It is an important food source for black bears, deer, small mammals, and birds.

This species is listed as endangered in Indiana and Connecticut, as threatened in Iowa and Ohio, and as sensitive in Washington.