Masahiro Ishigami (石上優大, Ishigami Masahiro, born 20 October 1997) is a Japanese professional cyclist, who currently rides for UCI Continental team Aisan Racing Team.

After riding with the team as a stagiaire in 2019, Ishigami signed with French UCI ProTeam Nippo–Delko–One Provence in 2020, joining compatriots Fumiyuki Beppu, Atsushi Oka, and Hideto Nakane.

[2] On 31 May 2021, Ishigami signed with Nippo–Provence–PTS Conti, and was later joined by Delko teammate Atsushi Oka, who signed a month earlier on 29 June.

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