Matsumoto Hōji (active late 18th century, died 1800) was a painter of the mid-Edo period, remembered today above all for a single small woodblock image of a frog that has outlived almost everything else known about him.
He worked in Osaka, where he is recorded as a picture mounter and framer as well as a painter. Very little of his life is documented. He was active during the Tenmei and Kansei eras of the late 1700s, and the surviving sources agree on his fondness for frogs and toads, which he is said to have kept and observed at close hand.
Hōji painted in the loose, abbreviated manner associated with ink-wash sketching, where a few well-judged strokes stand in for a whole creature. His subjects favoured the small and the overlooked: amphibians, insects, plants. This was painting in a quiet register, far from the bright actor portraits and courtesan prints that dominated the print market of his day.
His best-known work is the frog that appears in the Meika Gafu, an album of designs after noted painters printed in Nagoya by the publisher Eirakuya Tōshirō in 1814, after Hōji's death. The frog sits in profile, rounded and still, set against empty paper. It is an image of great economy: no background, no narrative, only the animal and the space around it.
That one frog has had an afterlife its maker could not have foreseen. Reproduced widely online and in print, it has become one of the most circulated of all Japanese animal images, often shared with no name attached. The contrast between the picture's fame and the artist's near-anonymity is part of its lasting appeal.
Hōji belongs to the broad tradition of Edo-period painters who treated the natural world with humour and economy rather than grandeur. His frog endures because it asks for nothing: it simply sits, patient and complete.
If you want to know more about the artist: Matsumoto Hōji - Wikipedia