Rubroboletus rubrosanguineus is a species of bolete fungus in the family Boletaceae that is found in Europe.

[3] It was transferred to the new genus Rubroboletus in 2014 along with several allied reddish, blue-staining bolete species.

Molecular analysis of eight of the member species found it was most closely related to Rubroboletus sinicus and formed a larger clade with R. satanas and R. pulchrotinctus[4] The large stout fruit bodies have light to dark grey or grey-brown caps, often with pinkish margins, that may reach 15 cm (6 in) in diameter.

The stout stipe is bulbous or cylindrical at the base and yellow at the top and pink- to orange-red at its lower parts, and patterned in a fine darker orange or red reticulation.

[5] It is mycorrhizal, forming associations with spruce (Picea) and fir (Abies), and generally found in montane habitats.