Verrucaria kiyosumiensis is a species saxicolous (rock-dwelling), crustose lichen in the family Verrucariaceae.

Found in semi-freshwater habitats in Chiba Prefecture, central Japan, it was formally described as a new species in 2001 by lichenologist Hiroshi Harada.

The lichen has almost spherical, exposed black perithecia measuring 0.15–0.25 mm in diameter, and dark purplish brown perithecial walls lacking a distinct involucrellum.

The periphyses are 10–15 μm long with pointed apices, and its ascospores have dimensions of 12–16 by 5–7 μm.

The lichen has an indistinct thallus.