| Election Name: | 2010 Seoul mayoral election |
| Country: | Seoul |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2006 Seoul mayoral election |
| Previous Year: | 2006 |
| Election Date: | 2 June 2010 |
| Next Election: | 2011 Seoul mayoral by-election |
| Next Year: | 2011 |
| Turnout: | 4,426,182 (53.90%) |
| Candidate1: | Oh Se-hoon |
| Party1: | Grand National Party |
| Popular Vote1: | 2,086,127 |
| Percentage1: | 47.43% |
| Candidate2: | Han Myeong-sook |
| Party2: | Democratic Party (South Korea, 2008) |
| Popular Vote2: | 2,059,715 |
| Percentage2: | 46.83% |
| Mayor | |
| Before Election: | Oh Se-hoon |
| Before Party: | Grand National Party |
| After Election: | Oh Se-hoon |
| After Party: | Grand National Party |
The 2010 Seoul mayoral election was held on 2 June 2010 as part of the 5th local elections.
| 2010 Grand National Party Seoul mayoral primary results[1] | |||||
|---|---|---|---|---|---|
| width=130 | Candidate | width=90 | Place | width=130 | Results |
| Oh Se-hoon | 68.40% | ||||
| Na Kyung-won | bgcolor=silver | 2nd | 24.88% | ||
| Kim Choong-whan | bgcolor=silver | 3rd | 6.72% | ||
| 100% | |||||
| 2010 Democratic Party Seoul mayoral primary results[2] | |||||
|---|---|---|---|---|---|
| width=130 | Candidate | width=90 | Place | width=140 | Results |
| Han Myeong-sook | Results not released | ||||
| Lee Kye-ahn | bgcolor=silver | 2nd | Results not released | ||
| 100% | |||||
| 2010 Liberty Forward Party Seoul mayoral primary results | |||||
|---|---|---|---|---|---|
| width=130 | Candidate | width=90 | Place | width=90 | Results |
| Ji Sang-wook | Walkover | ||||
| 2018 New Progressive Party Seoul mayoral primary results | |||||
|---|---|---|---|---|---|
| width=130 | Candidate | width=90 | Place | width=90 | Results |
| Roh Hoe-chan | Walkover | ||||
| Name | Age | Party | Notes | |
|---|---|---|---|---|
| Oh Se-hoon | 49 | Grand National Party | Member of the National Assembly (2000–2004); Mayor of Seoul (2006–present) | |
| Han Myeong-sook | 66 | Democratic Party | Minister of Gender Equality (2001–2003); Minister of Environment (2003–2004); Prime Minister of South Korea (2006–2007) | |
| Ji Sang-wook | 45 | Liberty Forward Party | ||
| Roh Hoe-chan | 53 | New Progressive Party | Member of the National Assembly (2004–2008); Leader of the New Progressive Party (2008–present) | |
| Seok Jong-hyun | 66 | Future Union |
| Districts | Oh Se-hoon | Han Myeong-sook | Ji Sang-wook | Roh Hoe-chan | Seok Jong-hyun | Total votes | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Votes | % | Votes | % | Votes | % | Votes | % | Votes | % | |||
| Jongno District | 35,476 | 46.04 | 36,910 | 47.90 | 1,719 | 2.23 | 2,653 | 3.44 | 288 | 0.37 | 77,046 | |
| Jung District | 28,648 | 47.55 | 28,410 | 47.16 | 1,198 | 1.98 | 1,618 | 2.68 | 363 | 0.60 | 60,237 | |
| Yongsan District | 53,285 | 51.15 | 44,706 | 42.91 | 2,533 | 2.43 | 3,160 | 3.03 | 480 | 0.46 | 104,164 | |
| Seongdong District | 63,448 | 47.22 | 63,966 | 47.60 | 2,534 | 1.88 | 3,891 | 2.89 | 526 | 0.39 | 134,365 | |
| Gwangjin District | 72,749 | 46.08 | 76,420 | 48.41 | 3,089 | 1.95 | 4,878 | 3.09 | 707 | 0.44 | 157,843 | |
| Dongdaemun District | 74,536 | 46.77 | 76,032 | 47.71 | 3,272 | 2.05 | 4,759 | 2.98 | 738 | 0.46 | 159,337 | |
| Jungnang District | 80,577 | 47.13 | 81,517 | 47.68 | 3,432 | 2.00 | 4,757 | 2.78 | 670 | 0.39 | 170,953 | |
| Seongbuk District | 91,907 | 45.19 | 99,316 | 48.83 | 4,093 | 2.01 | 7,236 | 3.55 | 808 | 0.39 | 203,360 | |
| Gangbuk District | 63,231 | 44.84 | 70,115 | 49.72 | 2,553 | 1.81 | 4,539 | 3.21 | 569 | 0.40 | 141,007 | |
| Dobong District | 74,594 | 46.98 | 74,789 | 47.10 | 3,224 | 2.03 | 5,400 | 3.40 | 766 | 0.48 | 158,773 | |
| Nowon District | 119,567 | 45.58 | 124,603 | 47.50 | 4,973 | 1.89 | 12,126 | 4.62 | 1,049 | 0.39 | 262,318 | |
| Eunpyeong District | 85,737 | 44.77 | 95,666 | 49.95 | 3,807 | 1.98 | 5,493 | 2.86 | 798 | 0.41 | 191,501 | |
| Seodaemun District | 64,769 | 44.42 | 72,788 | 49.92 | 2,966 | 2.03 | 4,697 | 3.22 | 581 | 0.39 | 145,801 | |
| Mapo District | 75,267 | 43.79 | 85,882 | 49.97 | 3,340 | 1.94 | 6,739 | 3.92 | 627 | 0.36 | 171,855 | |
| Yangcheon District | 101,350 | 47.47 | 100,272 | 46.96 | 4,376 | 2.04 | 6,492 | 3.04 | 996 | 0.46 | 213,486 | |
| Gangseo District | 111,082 | 46.05 | 116,689 | 48.37 | 5,121 | 2.12 | 7,315 | 3.03 | 1,010 | 0.41 | 241,217 | |
| Guro District | 83,846 | 44.85 | 92,666 | 49.57 | 3,878 | 2.07 | 5,715 | 3.05 | 803 | 0.42 | 186,908 | |
| Geumcheon District | 44,702 | 43.45 | 52,451 | 50.99 | 2,533 | 2.46 | 2,763 | 2.68 | 415 | 0.40 | 102,864 | |
| Yeongdeungpo District | 84,999 | 47.45 | 83,982 | 46.88 | 3,683 | 2.05 | 5,577 | 3.11 | 879 | 0.49 | 179,120 | |
| Dongjak District | 81,914 | 44.72 | 90,859 | 49.60 | 3,610 | 1.97 | 6,126 | 3.34 | 646 | 0.35 | 183,155 | |
| Gwanak District | 93,184 | 39.34 | 128,444 | 54.23 | 4,841 | 2.04 | 9,497 | 4.01 | 851 | 0.35 | 236,817 | |
| Seocho District | 109,446 | 59.07 | 65,626 | 35.41 | 3,738 | 2.01 | 5,762 | 3.10 | 709 | 0.38 | 185,281 | |
| Gangnam District | 138,390 | 59.94 | 79,094 | 34.26 | 5,136 | 2.22 | 7,252 | 3.14 | 977 | 0.42 | 230,849 | |
| Songpa District | 149,228 | 51.28 | 125,414 | 43.09 | 6,239 | 2.14 | 8,861 | 3.04 | 1,250 | 0.42 | 290,992 | |
| Gangdong District | 104,195 | 49.99 | 93,098 | 44.66 | 4,144 | 1.98 | 6,153 | 2.95 | 833 | 0.39 | 208,423 | |
| Total | 2,086,127 | 47.43 | 2,059,715 | 46.83 | 90,032 | 2.04 | 143,459 | 3.26 | 18,339 | 0.41 | 4,397,672 | |