Hiroko Makino (牧野 紘子, Makino Hiroko, born 20 August 1999) is a Japanese swimmer.

She competed in the women's 200 metre butterfly event at the 2017 World Aquatics Championships.

[1][2] At the 2014 Junior Pan Pacific Swimming Championships in Hawaii, United States, Makino won a silver medal in the 400 metre individual medley with a time of 4:45.23 and a bronze medal in the 4×200 metre freestyle relay, where she split a 2:02.62 to contribute to the final time of 8:09.26.

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