Seki Semimaru Shrine, Shinto shrine in Japan

Seki Semimaru Shrine in Ōtsu consists of an upper shrine on the slope of Ōsaka Pass and a lower shrine at its foot. The upper shrine enshrines Sarutahiko; the lower enshrines Toyotama-hime, with Semimaru venerated at both. The lower shrine's grounds are crossed by the Keihan Keishin Line, and the approach path has a level crossing.

According to shrine tradition, Ono no Minemori founded the upper and lower shrines on Mount Ōsaka in 822, dedicating them to Sarutahiko and Toyotama-hime. In 876 the deity received the rank of Junior Fifth Rank, Lower Grade as 'Sakagami' of Ōmi Province. After the poet and biwa player Semimaru, who lived on the pass, died, he was worshipped at both shrines; in 971 Emperor En'yū decreed that he be venerated as a god of music and dance.

The shrine is dedicated to Semimaru, a poet and musician whose verses appear in classical Japanese anthologies and are still read today. People come here to pray for success in artistic pursuits, especially those related to the biwa, a traditional Japanese lute.

The lower shrine's grounds are crossed by the Keihan Keishin Line, so the approach path passes over a level crossing. The shrine is a walk from Keihan Kamisakaemachi Station or JR Ōtsu Station. The upper and lower shrines stand apart on the slope of Ōsaka Pass, so allow time to move between them.

One of the stone lanterns on the grounds dates to the Kamakura period, making it several centuries older than most of the shrine buildings standing today. It is one of the few objects on site that directly connects the physical place to its medieval past.