Osamu Yatabe

{{Short description|Japanese lawyer and politician (1932–2021)}}

{{Infobox officeholder

| name = Osamu Yatabe

| image =

| alt =

| caption =

| birth_name =

| birth_date = 15 February 1932

| birth_place = Daigo, Japan

| death_date = {{Death date and age|df=y|2021|12|05|1932|02|15}}

| death_place = Mito, Japan

| nationality = Japanese

| other_names =

| occupation = Lawyer

| years_active =

| known_for =

| notable_works =

| party = JSP
New Socialist Party of Japan

| office = Chairman of the New Socialist Party of Japan

| term_start = 1996

| term_end = 2002

| predecessor = position established

| successor = {{ill|Tatsukuni Komori|ja|小森龍邦}}

| office2 = Member of the House of Councillors of Japan

| term_start2 = 8 July 1974

| term_end2 = 25 July 1998

| predecessor2 = {{ill|Motojirō Mori|ja}}

| successor2 = Akira Gunji

| constituency2 = Ibaraki at-large district

}}

Osamu Yatabe ({{langx|ja|矢田部理}} Yatabe Osamu; 15 February 1932 – 5 December 2021) was a Japanese lawyer and politician.{{cite news |last= |first= |date=10 December 2021|title=元参院議員の矢田部理氏死去|trans-title= |url=https://www.jiji.com/jc/article?k=2021121001153|language=Japanese|work=Jiji Press|location= |access-date=11 December 2021}} A member of the Japan Socialist Party and later the New Socialist Party of Japan, he served in the House of Councillors from 1974 to 1998.{{cite web|url=http://www.ndl.go.jp/jp/data/publication/refer/200512_659/065905.pdf|title=戦後の補欠選挙|work=National Diet Library|language=Japanese|url-status=dead|archiveurl=https://web.archive.org/web/20061210180554/http://www.ndl.go.jp/jp/data/publication/refer/200512_659/065905.pdf|archivedate=10 December 2006}}