This is a list of South Korean football transfers for the 2012 season transfer window. Only transfers of the K-League are included.
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Jeonbuk Hyundai Motors FC is a South Korean professional football club based in Jeonju, North Jeolla Province that competes in the K League 1, the top tier of South Korean football. Jeonbuk have won the K League a record nine times, including five consecutive titles between 2017 and 2021, and the Korean FA Cup five times. The club have also won the AFC Champions League twice, first in 2006, becoming the first club from East Asia to win the tournament since it was launched in its current format in 2003. The club's home ground is the Jeonju World Cup Stadium.
Alexander William Wilkinson is a retired Australian professional soccer player who played as a central defender.
Lee Dong-gook is a South Korean former professional footballer who played as a striker. He is a record scorer in the K League 1, and had brief spells in Europe with Werder Bremen and Middlesbrough. He also played for the South Korea national football team at three FIFA World Cups and two AFC Asian Cups.
Dario Vidošić is a former soccer player and current coach who is the interim manager of A-League Women club Melbourne City FC Women. Born in Yugoslavia, he represented Australia at international level.
Nikita Vadymovych Rukavytsya is a professional footballer who played for Israeli Premier League club Maccabi Haifa. Born in Ukraine, he represents the Australia national team.
Erik Endel Paartalu is an Australian professional footballer of Estonian descent who plays as a defensive midfielder. He has played professionally in Scotland, Australia, China, Qatar, South Korea, Thailand and India.
Rostyn John Griffiths is an Australian professional footballer who plays as a defender or defensive midfielder for Indian Super League club Mumbai City. Griffiths is a former captain of A-League club Perth Glory. In August 2017 it was announced that Griffiths had signed a lucrative deal as a defensive midfielder for Uzbekistan giants Pakhtakor Tashkent in the Uzbek League.
Kim Bo-kyung is a South Korean professional footballer who plays as a midfielder for Korean club Suwon Samsung Bluewings.
Aziz Eraltay Behich is an Australian professional footballer who plays as a left back and left winger for A-League club Melbourne City and the Australia national team.
Bernie Alpha Ibini-Isei, also known simply as Bernie Ibini, is a professional football player who most recently played as a striker or winger. Born in Nigeria, he represented Australia internationally.
Mohammad Mustafa Castillo Amini, known as Mustafa Amini, is an Australian professional footballer who plays for Perth Glory and the Australian national team.
Eli Babalj is a footballer who plays as a striker. Born in Yugoslavia, he has represented Australia at international level. Alongside Robert Cornthwaite and Sasa Ognenovski, Babalj, at 1.95 m is the joint third tallest player to have represented the Australia national association football team, behind Zeljko Kalac and Harry Souttar.
The 2011–12 season was the Wellington Phoenix's fifth season in the A-League. After placing 4th at the conclusion of the regular season, the Phoenix's title hopes came to an end in the second round of the finals series, losing 3–2 to Perth in extra time.
The 2012 K League, officially known as Hyundai Oilbank K-League 2012, was the 30th season of the K League. It was sponsored by Hyundai Oilbank. Since this season, the K League Championship and the Korean League Cup were abolished, and K League introduced the "split system", inspired by Scottish Premier League. After all 16 clubs played 30 matches each under the home and away system, they were split into the group of top eight and the group of bottom eight, playing with each other in a group again.
Craig Alexander Goodwin is an Australian professional football player who plays for Adelaide United and the Australian national team. He is Adelaide United's all-time leading goalscorer.
Stefan Ingo Mauk is an Australian professional footballer who plays for J2 League club Fagiano Okayama. An attacking midfielder, Mauk is also capable of playing as a box-to-box midfielder and as a right winger.
Lee Jae-sung is a South Korean professional footballer who plays as an attacking midfielder or winger for Bundesliga club Mainz 05 and the South Korea national team.
The 2016 K League Classic was the 34th season of the top division of South Korean professional football since its establishment in 1983, and the fourth season of the K League Classic.
Kim Min-jae is a South Korean professional footballer who plays as a centre-back for Bundesliga club Bayern Munich and the South Korea national team. Considered one of the best defenders in the world, Kim is known for his strength, aggressive defending and ability to read opponents.
The 2017–18 Adelaide United FC season was the club's 14th season since its establishment in 2003. The club participated in the A-League for the 13th time and the FFA Cup for the 4th time.