Any foreign visitors wishing to enter the Republic of Korea must have a valid passport and obtain a Korean visa before coming. However, people of 99 countries who want to visit Korea temporarily are permitted to enter without a visa according to visa-exemption agreements, or in accordance with principles reciprocity of national interest.
Please check out here.

Countries under Visa Waiver Agreements

• Country Applicable Passports Maximum period of stay Seaman's book
• ALGERIA Diplomatic, Official passport 90 days ×
• ANGOLA Diplomatic, Official passport 30 days ×
• ANTIGUA-BARBUDA Ordinary, Diplomatic, Official passport 90 days ○
• AUSTRIA Ordinary, Diplomatic, Official passport Ordinary:90 days, Diplomatic·Official passport:180days, Staff stationed in Korea : During a period of incumbency ×
• ARGENTINA Diplomatic, Official passport 90 days ×
• ARMENIA Diplomatic, Official passport 90 days ×
• AZERBAIJAN Diplomatic, Official passport 30 days ×
• BAHAMAS Ordinary, Diplomatic, Official passport 90 days ○
• BANGLADESH Diplomatic, Official passport 90 days ○
• BARBADOS Ordinary, Diplomatic, Official passport 90 days ○
• BELARUS Diplomatic, Official passport 90 days ×
• BELGIUM Ordinary, Diplomatic, Official passport 3 Months ×
• BELIZE Diplomatic, Official passport 90 days ×
• BENIN Diplomatic, Official passport 90 days ×
• BOLIVIA Diplomatic, Official passport 90 days ×
• BRAZIL Ordinary, Diplomatic, Official passport Ordinary:90 days, Diplomatic·Official passport:90 days, Staff stationed in Korea : During a period of incumbency ×
• BULGARIA Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• CAPE VERDE Diplomatic, Official passport 90 days ×
• CANADA Ordinary, Diplomatic, Official passport 6 months
• CAMBODIA Diplomatic, Official passport 60 days, Staff stationed in Korea : During a period of incumbency ×
• CHILE Ordinary, Diplomatic, Official passport 90 days ×
• CHINA Diplomatic, Official passport 30 days ×
• COLOMBIA Ordinary, Diplomatic, Official passport 90 days ×
• COSTARICA Ordinary, Diplomatic, Official passport 90 days ○
• CROATIA Diplomatic, Official passport 90 days ×
• CYPRUS Diplomatic, Official passport 90 days ×
• CZECH Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• DENMARK Ordinary, Diplomatic, Official passport 90 days ×
• COMMONWEALTH OF DOMINICA Ordinary, Diplomatic, Official passport 90 days ○
• DOMINICA REP Ordinary, Diplomatic, Official passport 90 days ×
• ECUADOR Diplomatic, Official passport Official passport:3 Months, Diplomatic:Unlimited ×
• EGYPT Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• EL SALVADOR Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ○
• ESTONIA Ordinary, Diplomatic, Official passport 90 days ×
• FRANCE Ordinary, Diplomatic, Official passport 90 days ×
• FINLAND Ordinary, Diplomatic, Official passport 90 days ×
• GABON Diplomatic, Official passport 90 days ×
• GEORGIA Diplomatic, Official passport 90 days ×
• GERMANY Ordinary, Diplomatic, Official passport Ordinary:90 days, Diplomatic·Official passport:Unlimited,
• Staff stationed in Korea : During a period of incumbency ×
• GREECE Ordinary, Diplomatic, Official passport Ordinary:90 days, Diplomatic·Official passport:Unlimited ×
• GRENADA Ordinary, Diplomatic, Official passport 90 days ○
• GUATEMALA Ordinary, Diplomatic, Official passport 90days, Staff stationed in Korea : During a period of incumbency ×
• HAITI Ordinary, Diplomatic, Official passport 90 days ○
• HUNGARY Ordinary, Diplomatic, Official passport 90 days ×
• ICELAND Ordinary, Diplomatic, Official passport 90 days ×
• INDIA Diplomatic, Official passport 90 days ×
• IRAN Diplomatic, Official passport 3 Months ×
• IRELAND Ordinary, Diplomatic, Official passport 90 days ×
• ISRAEL Ordinary, Diplomatic, Official passport 90days, Staff stationed in Korea : During a period of incumbency ×
• ITALY Ordinary, Diplomatic, Official passport 90days ×
• JAMAICA Ordinary, Diplomatic, Official passport 90days ○
• JAPAN Ordinary, Diplomatic, Official passport Ordinary:B-2, 90days, Diplomatic·Official passport:90days,
• Staff stationed in Korea : During a period of incumbency ×
• KAZAKHSTAN Ordinary, Diplomatic, Official passport Ordinary:30days, Diplomatic, Official passport:90days ×
• KIRGIZSTAN Diplomatic, Official passport 30days ×
• KUWAIT Diplomatic, Official passport 90days, Staff stationed in Korea : During a period of incumbency ×
• LAOS Diplomatic, Official passport 90days ×
• LATVIA Ordinary, Diplomatic, Official passport 90days, Staff stationed in Korea : During a period of incumbency ×
• LESOTHO Ordinary, Diplomatic, Official passport 60days ×
• LIBERIA Ordinary, Diplomatic, Official passport 90days ○
• LIECHTENSTEIN Ordinary, Diplomatic, Official passport 90days ×
• LITHUANIA Ordinary, Diplomatic, Official passport 90days, Staff stationed in Korea : During a period of incumbency ×
• LUXEMBOURG Ordinary, Diplomatic, Official passport 3 Months ×
• MALAYSIA Ordinary, Diplomatic, Official passport 3 Months ×
• MALTA Ordinary, Diplomatic, Official passport 90 days ×
• MEXICO Ordinary, Diplomatic, Official passport 90 days ×
• MOLDOVA Diplomatic, Official passport 90 days ×
• MONGOLIA Diplomatic, Official passport 90 days ×
• MOROCCO Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ○
• MYANMAR Diplomatic, Official passport 90 days
• NETHERLAND Ordinary, Diplomatic, Official passport 3 Months ×
• NEW ZEALAND Ordinary, Diplomatic, Official passport 3 Months, Staff stationed in Korea : During a period of incumbency ×
• NICARAGUA Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ○
• NORWAY Ordinary, Diplomatic, Official passport 90 days ×
• OMAN Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• PAKISTAN Diplomatic, Official passport 3 Months ×
• PANAMA Ordinary, Diplomatic, Official passport 90 days ×
• PARAGUAY Diplomatic, Official passport 90 days ×
• PERU Ordinary, Diplomatic, Official passport 90 days ○
• PHILIPPINES Diplomatic, Official passport Unlimited ×
• POLAND Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• PORTUGAL Ordinary, Diplomatic, Official passport 60 days ○
• RUMANIA(D. O. S.) Ordinary, Diplomatic, Official passport 3Months, Staff stationed in Korea : During a period of incumbency ×
• RUSSIA Diplomatic, Official passport, Ordinary:60days 90 days ×
• SINGAPORE Ordinary, Diplomatic, Official passport 90 days ×
• SLOVAK Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• SPAIN Ordinary, Diplomatic, Official passport 90 days ○
• ST. KITIS NEVIS Ordinary, Diplomatic, Official passport 90 days ○
• ST. LUCIA Ordinary, Diplomatic, Official passport 90 days ○
• ST. VINCENT Ordinary, Diplomatic, Official passport 90 days ○
• SURINAM Ordinary, Diplomatic, Official passport 90 days ×
• SWEDEN Ordinary, Diplomatic, Official passport 90 days ×
• SWITZERLAND Ordinary, Diplomatic, Official passport 3 Months ×
• TADZHIKISTAN Diplomatic, Official passport 90 days ×
• THAILAND Ordinary, Diplomatic, Official passport Ordinary:90 days, Diplomatic·Official passport:Unlimited ○
• TRINIDOD-TOBAGO Ordinary, Diplomatic, Official passport 90 days ○
• TUNISIA Ordinary, Diplomatic, Official passport 30 days, Staff stationed in Korea : During a period of incumbency ×
• TURKEY Ordinary, Diplomatic, Official passport 3 Months ×
• TURKMENISTAN Diplomatic 30 days ×
• U.A.E Ordinary, Diplomatic, Official passport 30 days ×
• UKRAINE Diplomatic, Official passport 90 days ×
• UZBEKISTAN Diplomatic 60 days, Staff stationed in Korea : During a period of incumbency ×
• UNITED KINGDOM Ordinary, Diplomatic, Official passport 90 days ×
• UNITED STATES Ordinary, Diplomatic, Official passport 90 days
• URUGUAY Ordinary, Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×
• VENEZUELA Ordinary, Diplomatic, Official passport Ordinary:90 days, Diplomatic·Official passport:30 days,
  Staff stationed in Korea : During a period of incumbency ×
• VIETNAM Diplomatic, Official passport 90 days, Staff stationed in Korea : During a period of incumbency ×