is a Japanese footballer who plays as a defensive midfielder for club Tokyo Verdy.
On 26 December 2016, Miyahara joined Nagoya Grampus on a season-long loan deal, extended his loan deal with Nagoya Grampus 30 December 2017 for an additional year.
On 18 December 2018, Nagoya Grampus announced the permanent signing of Miyahara from Sanfrecce Hiroshima.
After four seasons with Nagoya, in December 2022 it was announced that Miyahara would be joining J2 League club Tokyo Verdy for the 2023 season.
In October 2013, Miyahara was elected Japan U-17 national team for 2013 U-17 World Cup. He played three matches.
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