Title: South Korean won
Content:  The South Korean won, officially the Korean Republic won (Symbol: ₩; Code: KRW; Korean: 대한민국 원) is the official currency of South Korea. A single won is divided into 100 jeon, the monetary subunit. The jeon is no longer used for everyday transactions, and it appears only in foreign exchange rates. The currency is issued by the Bank of Korea, based in the capital city of Seoul.
Title: List of motifs on banknotes
Content:  The official currency of South Korea is the South Korean Won (KRW). The motifs used are:
Title: North Korean won
Content:  The North Korean won, also known as the Korean People's won (Symbol: ₩; Code: KPW; Korean: 조선인 원) or Democratic People's Republic of Korea won (Korean: 조선민주주의인민공화국 원), is the official currency of North Korea. It is subdivided into 100 chon. The currency is issued by the Central Bank of the Democratic People's Republic of Korea, based in the North Korean capital, Pyongyang.
Title: North Korea
Content:  2012, Gross national income per capita was $1,523, compared to $28,430 in South Korea. The North Korean won is the national currency, issued by the Central Bank of the Democratic People's Republic of Korea. The economy has been developing dramatically in recent years despite sanctions. According to the Sejong Institute these changes have been "astonishing". The economy is heavily nationalized. Food and housing are extensively subsidized by the state; education and healthcare are free; and the payment of taxes was officially abolished in 1974. A variety of goods are available in department stores and supermarkets in Pyongyang, though most of the population relies on small-scale jangmadang markets. 
Title: South Korean hwan
Content:  The hwan was the currency of the Republic of Korea (South Korea) between February 15, 1953 and June 9, 1962.
Title: Etymology of the Korean currencies
Content:  The won is the currency of both North and South Korea. "Won" is a cognate of the Chinese currency unit, the yuan (//), and the Japanese currency unit, the yen (¥), meaning "round object". The won is subdivided into 100 jeon. Yang is a former Korean currency. It is a cognate of the Chinese tael ( pronounced "" in Mandarin). The yang was subdivided into 100 fun (푼) (pronounced "pun" but spelt with an "f" on the coins). Fun is a cognate of the Chinese word fen, referring to 1/100 of a Chinese yuan in modern context.
Title: Etymology of the Korean currencies
Content:  The word jeon is also used in Korean to translate the word "cent," and in this context is associated with bul (불, 弗), meaning "dollar." (The hanja character resembles the symbol "$".) These two words are used by Koreans living in the Western hemisphere when referring to dollar currencies.
Title: Korean currency
Content:  After the division of Korea, North Korea continued using the Korean yen for 2 years until the Central Bank of the Democratic People's Republic of Korea was established on December 6, 1947 and a new currency was issued. It was at the time pegged at par to the Soviet ruble. It was revalued at a rate of one hundred to one in February 1959 and new won were issued. In the following years the won faced some devaluation, caused by the subsequent devaluation and redenomination of the Soviet ruble. From 1978 to 2001, the North Korean government maintained an iconic rate of 2.16 won to the US dollar; since then banks in the country exchange at rates closer to the black market rate. However, rampant inflation has been eroding the North Korean wŏn's value to such an extent that currently it is believed to be worth about the same as the South Korean wŏn (needs sourcing). In any case, the U.S. dollar and other currencies are still worth more in North Korean wŏn on the black market than officially.
Title: Korean won
Content:  The Korean won (원 (圓), ) or Korean Empire won (Korean: 대한제국 원), was the official currency of the Korean Empire between 1902 and 1910. It was subdivided into 100 jeon (전 (錢), ).
Title: Korean mun
Content:  these symbols were just added for every new batch of mother coins. 1 tael of Sangpyeong Tongbo cash coins could purchase 20 kilograms of rice, and 4 taels Sangpyeong Tongbo cash coins could purchase either 80 kilograms of rice or 1 tael of silver. 1 piece, or 1 pun (分, 푼), would be worth 200 ~ 300 South Korean won in 2019 (or $0.16 ~ 0.25). The generally low value of small denomination Sangpyeong Tongbo cash coins is also the origin of the common Korean phrase "Give me one pun!", which is used to figuratively refer to the price of a 

Question: what is the money called in south korea?
Answer: won.
The won.