Matsunoyama, Niigata

{{Infobox settlement

| name = Matsunoyama

| official_name =

| native_name = {{nobold|松之山町}}

| native_name_lang = ja

| settlement_type = Former municipality

| other_name =

| image_skyline = Matsunoyamamatsuguchi, Tokamachi, Niigata Prefecture 942-1411, Japan - panoramio.jpg

| imagesize =

| image_caption = Beech Forest

| image_flag = Flag of Matsunoyama, Niigata (1959–2005).svg

| image_seal = Emblem of Matsunoyama, Niigata (1959–2005).svg

| seal_type = Emblem

| image_map =

| map_alt =

| map_caption = Location of Matsunoyama in Niigata Prefecture

| pushpin_map =

| pushpin_relief =

| pushpin_map_caption = Location in Japan

| coordinates =

| coordinates_footnotes =

| subdivision_type = Country

| subdivision_name = Japan

| subdivision_type1 = Region

| subdivision_name1 = Hokuriku

| subdivision_type2 = Prefecture

| subdivision_name2 = Niigata Prefecture

| subdivision_type3 = District

| subdivision_name3 = Higashikubiki District

| established_title =

| established_date =

| extinct_title = Merged

| extinct_date = April 1, 2005
(now part of Tōkamachi)

| founder =

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| seat =

| government_footnotes =

| leader_party =

| leader_title = Mayor

| leader_name =

| leader_title1 = Vice Mayor

| leader_name1 =

| total_type =

| unit_pref = Metric

| area_magnitude =

| area_footnotes =

| area_total_km2 = 86.31

| area_land_km2 =

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| area_water_percent =

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| population_footnotes =

| population_total = 2,974

| population_as_of = 2003

| population_density_km2 =

| population_est =

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| timezone1 = JST

| utc_offset1 = +09:00

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| blank_name_sec1 = City hall address

| blank_info_sec1 =

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}}

File:Amalgamation_Tokamachi_jp.svg (yellow area)]]

{{nihongo|Matsunoyama|松之山町|Matsunoyama-machi}} was a town located in Higashikubiki District, Niigata Prefecture, Japan.

As of 2003, the town had an estimated population of 2,974 and a density of 34.46 persons per km². The total area was 86.31 km².

On April 1, 2005, Matsunoyama, along with the town of Matsudai (also from Higashikubiki District), the town of Kawanishi, and the village of Nakasato (both from Nakauonuma District), was merged into the expanded city of Tōkamachi.{{Cite book |url=https://books.google.com/books?id=jK33qQjYcQ4C |title=住民基本台帳人口移動報告年報 |date=2005 |publisher=総務庁統計局 |pages=139 |language=ja |quote=Tokamachi-shi, Kawanishi-machi, Nakasato-mura, Matsudai-machi and Matsunoyama-machi were incorporated into a newly established Tokamachi-shi as of April 1, 2005.}}{{Cite web |title=十日町市の沿革{{!}}十日町市 |url=https://www.city.tokamachi.lg.jp/soshiki/somubu/kikakuseisakuka/4/gyomu/1450418205999.html |access-date=2024-02-04 |website=十日町市 |language=ja |quote=十日町市は、平成17年4月1日に旧十日町市、川西町、中里村、松代町及び松之山町の5市町村が新設合併して誕生しました。}} It is located in the southeastern portion of the city.

Matsunoyama is home to one of the big three medicinal hot springs of Japan, along with Kusatsu (Gunma Prefecture) and Arima Onsen (Hyōgo Prefecture). One of the main roads in the town is lined with about a dozen traditional Japanese-style hot spring resorts, attracting many visitors.