Japan National Route 128

{{Short description|National highway in Chiba Prefecture, Japan}}

{{onesource|date=October 2024}}

{{Infobox road

|country=JPN

|type=National

|route=128

|maint=

|alternate_name=

|map={{Maplink2|zoom=8|frame=yes|plain=yes|frame-align=center|frame-width=300|frame-height=380|frame-latitude=35.3062|frame-longitude=140.0922|type=line|stroke-color=#cc0000|stroke-width=2}}

|map_custom=yes

|image=Japan National Route 128 in Kaneda,Chosei village,Chiba Prefecture.JPG

|length_km=131.6

|length_round=

|length_ref={{cite web|title=一般国道の路線別、都道府県別道路現況|trans-title=Road statistics by General National Highway route and prefecture|url=http://www.mlit.go.jp/road/ir/ir-data/tokei-nen/2016/pdf/d_genkyou26.pdf|language=ja|publisher=Ministry of Land, Infrastructure, Transport and Tourism|access-date=19 February 2020}}

|established=1953

|direction_a=South

|terminus_a={{jct|country=JPN|Route|410}} / Prefectural Road 302 in Tateyama, Chiba

|junction=

|direction_b=North

|terminus_b={{jct|country=JPN|Route|51|Route|126}} in Chūō-ku, Chiba

|previous_type=Route

|previous_route=127

|next_type=Route

|next_route=129

|browse=

}}

National Route 128 is a national highway of Japan connecting Tateyama, Chiba and Chūō-ku, Chiba in Japan, with a total length of 131.6 km (81.77 mi). Its northernmost point is at geographic co-ordinates:35.550978,140.349827 and its southernmost at:34.993371,139.869347.