Matsumotodaira Park, Sports park in Matsumoto and Shiojiri, Japan

Matsumotodaira Park is a sports park straddling Matsumoto and Shiojiri in Nagano Prefecture, nicknamed Shinshu Sky Park, whose grounds ring Matsumoto Airport. Its athletics stadium opened in September 1977 for the 33rd National Sports Festival, with a 400 m nine-lane track and seating for 20,500. The Yamanbiko Dome, an indoor arena on artificial turf, stands on the site of the former Matsumoto municipal baseball ground.

The park's athletics stadium opened in September 1977 as Matsumoto Athletic Park Stadium, built as the main venue for the 33rd National Sports Festival. The site of the Yamabiko Dome once held the first Matsumoto municipal baseball stadium; on 1 January 1989 the city swapped that facility and land with the prefectural Matsumoto baseball ground at Asama Onsen, and the old stadium was closed. The indoor arena was then built on the former ballpark site as part of the wider park.

The park's nickname, Shinshu Sky Park, comes from its layout encircling Matsumoto Airport. The Yamabiko Dome indoor arena stands on the site of the first Matsumoto municipal baseball stadium, which was traded to the prefecture and closed on 1 January 1989; its sand-filled artificial turf now hosts volleyball, basketball and exhibitions.

The park encircles Shinshu Matsumoto Airport and straddles the Matsumoto–Shiojiri boundary. Walking courses run 10 km (full) and 4.5 km (half). From Matsumoto Station it is about 9 km; buses of the Airport–Imai line stop at Shinbayashi and Kamifutakuchi, roughly 20 minutes on foot from the main stadium, and at Shinju Sky Park Taiikku Center for the athletics zone. On weekends and holidays buses run to the airport, so walk from there.

The park's nickname, Shinshu Sky Park, comes from the airport it encircles; the boundary between Matsumoto and Shiojiri weaves through the grounds near the Matsumoto Airport Tunnel. The athletics stadium opened in September 1977 as the main venue of the 33rd National Sports Festival, with 20,500 seats split between a 6,500-seat main stand and 14,000 grass seats.