The Rensho (連署, "co-signatory") was the assistant to the shikken (regent) of the Kamakura shogunate in Japan.[1]
The rensho placed his signature next to that of the shikken on official orders.[1] In 1224 the third shikken Hōjō Yasutoki appointed Hōjō Tokifusa as the first rensho.[1] From then on, the rensho was chosen from influential members of the Hōjō clan,[1] but not from the main line of the clan (tokusō), with the one exception of Tokimune, who temporarily occupied the position from 1264 to 1268.