Cho Hunhyun (; born 10 March 1953) is a South Korean professional Go player and politician. Considered one of the greatest players of all time, Cho reached professional level in Korea in 1962. Since then, Cho has amassed 150 professional titles, more than any other player in the world. He held all of the open tournaments in Korea three times: in 1980, 1982 and 1986. Cho has also won 11 international titles, and Lee Sedol (18). He reached 1,000 career wins in 1995. Cho was considered a 2 dan professional in Korea, but was demoted to 4 kyu upon arriving in Japan. In 1980, he held nine titles simultaneously: Guksu, Myungin, Wangwi, Kisung, Paewang, Kiwang, Daewang, Jaewang and the Baccus Cup. Cho repeated this twice, in 1982 and 1986, winning ten and eleven titles respectively.
In 1984, Cho began teaching Lee Chang-ho. Two years later, Lee became a professional and began challenging Cho. By 1989, Lee defeated Cho for the first time in a title final by winning the 29th Chaegowi. In 1992, he lost the Paewang title to Lee after defending it for sixteen consecutive years. He was elected on the party's proportional representation list in the 2016 election, taking seat number 14.
On 5 February 2020, Cho was appointed as the Secretary-General of the newly formed Future Korea Party.
Promotion record
Titles and runners-up
Ranks first in total number of titles in Korea and third in international titles.
{| class="wikitable"
|-
!colspan=3|Domestic
|-
!Title || Wins || Runners-up
|-
| Guksu
| 16 (1976–1985, 1988, 1989, 1991, 1992, 1998, 2000) || 8 (1986, 1987, 1993–1996, 1999, 2001)
|-
| Myungin
| 12 (1977, 1979–1981, 1984–1990, 1997) || 7 (1973, 1978, 1983, 1991, 1998, 2000, 2003)
|-
| Chunwon
| || 2 (1996, 2002)
|-
| KBS Cup
| 11 (1980, 1981, 1984, 1986, 1987, 1989, 1990, 1992, 1996, 1997, 1999) || 2 (1991, 1994)
|-
| Daejoo Cup
| 1 (2010) || 1 (2011)
|-
| Wangwi
| 13 (1976–1979, 1981–1989) || 7 (1990, 1992, 1994, 1997, 1998, 2001, 2003)
|-
| Kisung
| 2 (1990, 1992) || 7 (1991, 1993–1996, 1998, 2003)
|-
| BC Card Cup
| 2 (1990, 1995) || 4 (1991, 1992, 1994, 1996)
|-
| Baedalwang
| || 1 (1996)
|-
| Chaegowi
| 15 (1973, 1974, 1976–1979, 1981–1988, 1992) || 8 (1980, 1989, 1990, 1993–1997)
|-
| Gukgi
| 12 (1975–1979, 1981–1987) || 3 (1980, 1988, 1992)
|-
| Paewang
| 20 (1977–1992, 1997–2000) || 2 (1993, 2001)
|-
| Taewang
| 8 (1983, 1985–1987, 1989, 1990, 1994, 1995) || 2 (1988, 1997)
|-
| Baccus Cup
| 6 (1983, 1985, 1987–1989, 1994) ||
|-
| Daewang
| 7 (1983–1987, 1989, 1993) || 3 (1993, 1995, 1996)
|-
| Paedel Cup
| 1 (1996) || 5 (1993–1995, 1997, 1999)
|-
| KT Cup
| 1 (2002) ||
|-
| Kiwang
| 12 (1979, 1981, 1982, 1984–1987, 1989–1992, 1995) || 3 (1983, 1988, 1993)
|-
| SBS TV Cup
| || 1 (1994)
|-
| Shin-Ei
| || 1 (1971)
|- align="center"
| Total || 139 || 67
|-
!colspan=3|International
|-
| Ing Cup
| 1 (1988) ||
|-
| LG Cup
| || 1 (2002)
|-
| Samsung Cup
| 2 (2001, 2002) ||
|-
| Chunlan Cup
| 1 (1999) ||
|-
| Fujitsu Cup
| 3 (1994, 2000, 2001) || 1 (1993)
|-
| Asian TV Cup
| 2 (2000, 2001) || 3 (1992, 1995, 2002)
|-
| Tong Yang Cup
| 2 (1994, 1997) ||
|- align="center"
| Total || 11 || 6
|-
!colspan=3|Career total
|-
|- align="center"
| Total || 150 || 73