Kofu Midorigaoka Sports Park Stadium, Sports complex in Kofu, Japan.

Kofu Midorigaoka Sports Park Stadium is an athletics stadium in Kofu, Yamanashi, with a 400 m eight-lane track and a natural-grass field of 106 by 69 metres. The wider park also holds a baseball ground, clay tennis courts, a ball-sports field and a four-pool swimming complex.

The stadium opened in 1954 as a prefectural-managed venue and hosted the Emperor's Cup final on 25 May 1954, when Keio BRB beat Toyo Industries. It lost its role as Yamanashi's main stadium when Kai-Ji National Sports Festival upgrades went to the new Kose Sports Park instead, and ownership passed from the prefecture to Kofu city in 1988, when the park took its present name. Fuji Den Service acquired naming rights in August 2022, giving the stadium the nickname Fuji Den Stadium.

The park's name comes from the Midorigaoka district of Kofu. Its baseball ground, opened in 1954, has long hosted high school, corporate and youth amateur baseball, and the last professional official game there was Yakult Atoms versus Hiroshima Carp on 2 May 1972. The pool appears in Adachi Mitsuru's manga Rough as the venue for the prefectural diving competition, and its diving pool was used for underwater filming of Umizaru.

Reach the park by bus from Kofu Station's terminal, platform 3: take a Yamanashi Kotsu bus on routes 01–06, 08 or 58 and get off at Shioe, about 10 minutes on foot; route 99 stops at Shioe 3-chome, roughly 15 minutes away. From Nirasaki Station, route 08 also serves Shioe. The baseball ground has no lighting, and since a 2007 foul ball broke a nearby window, hardball baseball is no longer played there.

The clay ball-game ground has an irregular shape because it was originally built as a shooting range; it now hosts softball and similar matches under nine 6000W-class floodlights. The ship-departure plaza was once a football pitch where Kofu Club, predecessor of Ventforet Kofu, played in the JSL era; its stands have been demolished.