The members of the twelfth National Assembly of South Korea were elected on 12 February 1985. The Assembly sat from 11 April 1985 until 29 May 1988. Their four-year term was officially supposed to be over on 10 April 1989, but the Constitution of the Sixth Republic of South Korea shortened their terms.

Members Province/CityConstituencyMemberPartyAt electionAt term's endSeoulJongno–JungLee Jong-chanDJPDJPLee Min-wooNKDPNKDPMapo–YongsanNoh Sung-hwanNKDPPDPPong Du-wanDJPDJPSeongdongLee Sei-keeDJPDJPPark Yong-manNKDPRDPDongdaemunSong Won-yongNKDPRDPKwon Young-wooDJPDJPSeongbukLee ChulNKDPIndependentKim Chung-ryeDJPDJPDobongChough Soon-hyungNKDPHDPHong Sung-wooDJPDJPSeodaemun–EunpyeongKim Jae-kwangNKDPRDPYoon Giel-joongDJPDJPGangseoKim Yung-baeNKDPPDPNam Jae-heeDJPDJPGuroCho Youn-haNKDPRDPKim Ki-baeDJPDJPYeongdeungpoPark Han-sangNKDPIndependentLee Chan-hyukDJPDJPDongjakPark SilNKDPPDPHuh Chung-illDJPDJPGwanakKim Soo-hanNKDPRDPYim Churl-soonDJPDJPGangnamKim Hyung-rhaeNKDPRDPLee Choong-jaeDKPPDPGangdongKim Dong-kyuNKDPRDPChung NamDJPDJPBusanJung–Dong–YeongdoKim Jung-kilDKPRDPPark Chan-jongNKDPIndependentSeo–SahaSeo Seok-jaiNKDPRDPKwak Jung-chulDJPDJPBusanjinKang Kyung-sikKNPNDRPKim Jeung-sooNKDPRDPDongnaeLee Geon-ilDKPNDRPPark Kwan-yongNKDPRDPNam–HaeundaeLee Ki-taekNKDPRDPYoo Heung-sooDJPDJPBukChang Sung-manDJPDJPMoon Jung-sooNKDPRDPDaeguJung–SeoYoo Sung-hwanNKDPRDPLee Man-supKNPIndependentDong–BukKim Yong-taeDJPDJPMok Yo-sangDKPRDPNam–SuseongRhee Chi-hoDJPDJPShin Do-hwanNKDPIndependentIncheonJung–NamShim Chung-kuDJPDJPMyeong Hwa-subNKDPRDPDong–BukYoo Jei-yeunNKDPRDPKim Sook-hyunDJPDJPGyeonggi ProvinceSuwon–HwaseongLee Byung-jickDJPDJPPark Wang-sikNKDPRDPSeongnam–GwangjuLee Dae-yubKNPNDRPOh Se-eungDJPDJPUijeongbu–Dongducheon–YangjuKim Heung-kwangNKDPRDPHong Woo-joonDJPDJPAnyang–Gwangmyeong–Siheung–OngjinLee Taek-donNKDPIndependentYoon Kook-roDJPDJPBucheon–Gimpo–GanghwaAn Dong-seonNKDPPDPPark Kyu-sikDJPIndependentNamyangju–YangpyeongKim Young-sunDJPDJPJo Byeong-bongKNPRDPYeoju–Icheon–YonginJong Dong-songDJPDJPCho Jong-ikDKPRDPSongtan–Pyeongtaek–AnseongLee Ja-honDJPDJPYoo Chi-songDKPIndependentPaju–GoyangLee Yong-hoDJPDJPLee Young-joonDKPRDPYeoncheon–Pocheon–GapyeongLee Han-dongDJPDJPKim Yong-chaeKNPNDRPGangwon ProvinceChuncheon–Chunseong–Cheolwon–HwacheonLee Min-supDJPDJPSin Chul-gynKNPNDRPWonju–Wonseong–Hongcheon–HoengseongKim Yong-daiDJPDJPHahm Jong-hanKNPDJPDonghae–Taebaek–SamcheokKim Jung-namDJPDJPKim Hyo-yungIndependentNDRPGangneung–Myeongju–YangyangRhee Bomb-JuneDJPDJPLee Bong-moKNPDJPSokcho–Yanggu–Inje–GoseongChung Jae-chullDJPDJPHeo Gyeong-guDKPIndependentYeongwol–Pyeongchang–JeongseonShim Myung-booDJPDJPShin Min-sunKNPDJPNorth Chungcheong ProvinceCheongju–CheongwonChung Chong-teckDJPDJPKim Hyun-sooNKDPRDPChungju–Jecheon–Jungwon–Jewon–DanyangLee Choon-kooDJPDJPLee Taeck-hyNKDPIndependentBoeun–Okcheon–YeongdongPark Jun-byungDJPDJPLee Yong-heeDKPPDPJincheon–Gwisan–EumseongKim Chong-hohDJPDJPKim Wan-taeKNPDJPSouth Chungcheong ProvinceDong, DaejeonSong Chun-youngNKDPRDPNam Jae-duDJPDJPJung, DaejeonKang Chang-heeDJPDJPKim Tae-ryongNKDPRDPCheonan–Cheonwon–AsanChung Sun-hoDJPDJPChung Jae-wonDKPIndependentGeumsan–Daedeok–YeongiCheon Yeong-seongDJPDJPYoo Han-yulDKPIndependentNonsan–GongjuChung Suk-moDJPDJPKim Han-sooNKDPRDPBuyeo–Seocheon–BoryeongLee Sang-ikDJPDJPKim Ok-sunNKDPIndependentCheongyang–Hongseong–YesanChoi Chang-kyuDJPDJPKim Sung-sikDKPRDPSeosan–DangjinKim Hyun-ukDJPDJPJang Ki-ukDKPIndependentNorth Jeolla ProvinceJeonju–WanjuYi Cheol-seungNKDPIndependentLim Bang-hyunDJPDJPGunsan–OkguGoh KunDJPDJPKim Bong-wookDKPPDPIri–IksanKim Deuk-sooKNPPDPCho Nam-joDJPDJPJinan–Muju–JangsuJeon Byeong-wooDJPDJPKim Kwang-sooKNPDJPNamwon City–Imsil–Namwon County–SunchangYang Chang-sikDJPDJPChoi Yong-anKNPIndependentJeongju–Jeongeup–GochangJun Jong-chunDJPDJPYoo Kab-chongIndependentBuan–GimjeChoi Rak-doNKDPPDPCho Sang-raeDJPDJPSouth Jeolla ProvinceDong–Buk, GwangjuShin Ki-haNKDPPDPKoh Kwi-namDJPDJPSeo, GwangjuKim Nok-yeongNKDPNKDPLee Young-ilDJPDJPMokpo–Muan–SinanChoi Young-choulDJPDJPIm Jong-kiDKPIndependentYeosu–Yeocheon–GwangyangKim Chai-hoDJPDJPShin Soon-beomNKDPPDPSuncheon–Gurye–SeungjuYou Kyung-hyunDJPDJPHuh Kyung-manNKDPPDPGeumseong–Gwangsan–NajuNa Sok-hoDJPDJPLee Jai-keunDKPPDPDamyang–Gokseong–HwasunKoo Yong-sangDJPDJPKoh Jae-chungDKPIndependentGoheung–BoseongLee Dai-soonDJPDJPYoo Joon-sangDKPPDPJangheung–Gangjin–Yeongam–WandoKim SikDJPDJPLee Young-kwonNKDPPDPHaenam–JindoJeong Si-chaeDJPDJPKim Bong-hoPDPYeonggwang–Hampyeong–JangseongCho Ki-sangDJPDJPLee Jin-yonDKPPDPNorth Gyeongsang ProvincePohang–Yeongil–UlleungPark Kyung-sukDJPDJPSeu Jong-yeulDKPIndependentGyeongju–Wolseong–CheongdoPark Kwon-hoemDJPDJPKim Il-yunDKPDJPGimcheon–Geumneung–SangjuKim Sang-kooDJPDJPLee Jae-okNKDPRDPAndong City–Andong County–UiseongKwon Jong-dalDJPDJPKim Young-saengKNPDJPGumi–Gunwi–Seonsan–ChilgokPark Jae-hongDJPDJPKim Hyun-kyiuIndependentRDPYeongju–Yeongpung–Yeongyang–BonghwaOh Han-kooDJPDJPHong Sa-dukNKDPIndependentDalseong–Goryeong–SeongjuKim Jong-kiDJPDJPLee Yong-taekIndependentDJPYeongdeok–Cheongsong–UljinKim Joong-kwonDJPDJPHwang Byung-wooDKPDJPYeongcheon City–Yeongcheon County–GyeongsanYum Kil-jungDJPDJPKwon Oh-taeNKDPRDPMungyeong–YecheonChae Mun-shickDJPDJPBan Hyung-sikNKDPRDPSouth Gyeongsang ProvinceMasanKang Sam-jaeNKDPRDPWoo Byung-kyuDJPDJPUlsan–UljuKim Tae-hoDJPDJPShim Wan-guDKPRDPJinju–Samcheonpo–Jinyang–SacheonAnn Byung-kyuDJPDJPLee Sang-minDKPRDPCheongwon–Jinhae–UichangBae Myung-gookDJPDJPHwang Nak-jooDKPRDPChungmu–Tongyeong–Geoje–GoseongChung Soon-dukDJPDJPKim Bong-joNKDPRDPUiryeong–Haman–HapcheonYu Sang-hoDJPDJPCho Hong-raeNKDPRDPMilyang–ChangnyeongShin Sang-sikDJPDJPPark IlDKPRDPGimhae City–Gimhae County–YangsanLee Jae-wooDJPDJPKim Dong-jooNKDPRDPNamhae–HadongPark Ik-jooDJPDJPChoi Chi-whanKNPKNPSancheong–Hamyang–GeochangKwon Ik-hyunDJPDJPKim Dong-yongNKDPRDPJeju ProvinceJeju–Bukjeju–NamjejuHyun Kyung-daeDJPDJPYang Jung-kyuIndependentDJPNationalProportional representationLee Chai-hyungDJPDJPChin Iee-chongDJPDJPRoh Tae-wooDJPDJPWang Sang-eunDJPDJPYoo Hak-seongDJPDJPLee Sang-jaeDJPDJPSuh Chung-hwaDJPDJPPark Johng-moonDJPDJPKang Kyong-shikDJPDJPHwang In-sungDJPDJPPark Dong-jinDJPDJPLee Yong-hoonDJPDJPRha Woong-baeDJPDJPCho Il-munDJPDJPKwon Joong-dongDJPDJPLee Seong-ryulDJPDJPKim Hyun-jaDJPDJPBae Seong-tongDJPDJPHyun Hong-chooDJPDJPLee Young-wookDJPDJPKim Young-jakDJPIndependentCho Sang-hyunDJPDJPKim Yung-chungDJPDJPAhn Kap-junDJPDJPKim Sung-kyDJPDJPCho Chong-hoDJPDJPRhee Shang-hiDJPDJPRyu Geun-hwanDJPDJPHan Yang-soonDJPDJPHong Jong-wookDJPDJPChung Chang-whaDJPDJPKim Chong-inDJPDJPKim Yung-kooDJPDJPChoe Byung-yulDJPDJPKang Yong-sikDJPDJPSong Yong-sikDJPDJPChi Youn-taiDJPDJPIm Du-binDJPDJPChung Hyun-kyungDJPDJPChin Chi-pomDJPDJPChoi Young-dukDJPDJPIm Yeong-deukDJPIndependentKim JipDJPDJPChi Kap-chongDJPDJPChoi Myun-hunDJPDJPLee Jong-ryoolDJPDJPCho Kyung-mokDJPDJPKim Hyung-hioDJPDJPKim Hak-joonDJPDJPSuh Jung-hwaDJPDJPKim Duoo-jongDJPDJPYang Kyung-jaDJPDJPMoon Hi-gabDJPDJPKim Yang-baeDJPDJPChung Hui-dongDJPIndependentKim Jang-sookDJPDJPPark He-kyongDJPDJPLee Choul-wooDJPDJPAhn Young-whaDJPDJPChoi Sang-jinDJPDJPLee Sung-hoDJPDJPLee JinDJPDJPChung Ho-keunDJPDJPKim Zoong-wieDJPDJPPark Sung-taeDJPDJPKim Chung-giunDJPDJPKim Tae-sooDJPDJPHong Hee-pyoDJPIndependentKim Moon-keeDJPDJPChung Dong-yunDJPDJPSim Guk-muDJPDJPKim Jong-yeulDJPDJPShin Dal-sooNKDPDJPLim Choon-wonNKDPPDPKo Han-joonNKDPPDPKim Hyung-kyungNKDPRDPChung Jey-moonNKDPRDPHan Seok-bongNKDPRDPYun Young-takNKDPRDPShin Byung-lyulNKDPRDPPark Jong-yullNKDPRDPCho Young-sooNKDPRDPKim Byung-sooNKDPIndependentKim Dong-wookNKDPRDPLee Kil-bumNKDPPDPKim Yong-ohNKDPPDPJang Chung-junNKDPPDPChoi FunNKDPPDPShin Kyung-sulNKDPDJPLee Tae-guDKPIndependentPark Hae-chungDKPIndependentSin Jae-hyuDKPIndependentSon Tai-gonDKPDJPChung Sang-kooDKPRDPChoi Woon-jiDKPDJPShin Dong-junDKPIndependentHwang Dae-bongDKPRDPSong Hyun-supDKPPDPKim Chong-chulKNPKNPChung Si-bongKNPNDRPMoon Byung-haKNPIndependentKim Kyu-wonKNPNDRPChoi Jae-kuKNPNDRPCho Yong-jikKNPNDRP

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