These are emergency numbers you should know while visiting or living in Korea. There are other numbers that may also be helpful in less urgent situations, such as while you are travelling or navigating government bureaucracy.
(Courtesy of 10 mag website)

Emergency/ Medical Hotlines

112  | Police
Call to report life-threatening situations and emergencies requiring law enforcement.

119 | Fire & Ambulance
The fire department and health emergencies requiring ambulance service. There’s also an English reporting section on their website.

182 | Missing Persons & Stolen Vehicles
This line is also used for non-emergency reports and requests such as inquiring about the cost of a fine for a traffic violation, information on car licenses, and how to contact officers in charge of specific cases.

1339 | KDCA
The KDCA provides foreigners with information about first-aid and diseases in English, Japanese, Chinese, Vietnamese, and Mongolian.

1366 | Seoul Women’s Help Hotline
Not necessarily English-friendly and not outside of Seoul, this 24-hour service immediate response line for women involved in domestic abuse, sexual violence or prostitution should still be kept handy.

Foreign Language Helplines

1330 | Korea Tourism Organization’s Travel Helpline
Tourism and translation services. The service is available 24/7 and provides information on tourist sites, transportation, restaurants, and more.

120 | Seoul Municipal Government Info
The Seoul “Dasan” helpline provides information on restaurants (Korean and international cuisines), transportation (bus, subway, taxi, etc.), Korean language schools, interpretation services, legal consulting, lost items, volunteer services, daily living in Seoul, and tourism. Available languages are Chinese, English, Japanese, Mongolian and Vietnamese from 9 am to 10 pm.

1345 | Immigration
For foreign residents to ask just about any immigration-related question. Keep in mind that they tend to be on the negative side, as it’s the safer way for them to answer. Tip: Get their name and information so that if you visit the immigration office and get a different story you can tell them that you were told otherwise.

1331 | National Human Rights Commission of Korea
Call here to get information on human rights laws and social justice in Korea, as well as get assistance with filing a complaint and even receive counseling.

110 | National Government Call Center
This phone number is available for the public to call and inquire about anything from government policy to civil complaints. Available in 20 different languages.