Independent lawmaker Ahn Cheol-soo on Sunday named four co-leaders of a committee that is charged with preparations to launch a new political party of his own that could change the landscape of South Korea's largely two-party politics.

The four co-chairmen of Ahn's so-called "new politics" committee are former science minister Park Ho-koon, former lawmakers Kim Hyo-seuk and Lee Kye-ahn, and Yoon Jang-hyun, a medical doctor and civic activist based in the opposition stronghold city of Gwangju.

Ahn announced last month that he would create the committee, which is widely seen as a precursor to a new political party of his own. Ahn did not say when the new party would be launched, but said he would do his best to "responsibly" take part in next June's local elections.

Ahn's potential party has been a focus of attention because of his popularity among young voters. If it fares well in the local elections, the envisioned party could emerge as a major force in South Korean politics, dominated by the ruling Saenuri Party and the main opposition Democratic Party.

The founder of South Korea's largest anti-virus software firm, AhnLab, had entered last year's presidential campaign with huge support from young liberal voters despite no political experience, painting himself as an outsider untainted by party politics.

Ahn later dropped out of the race to back opposition candidate Moon Jae-in.

Ahn was elected to the National Assembly as an independent in April's by-elections. (Yonhap News)