The above 1st and 2nd persons copied exactly my best answer for this question :
http://hk.knowledge.yahoo.com/question/?qid=7007022306391
Therefore l modified my best answer as below:
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tour2korea selected the following dishes to be the famous traditional Korean food:
1. 김치 Kimchi 泡菜
2. 비빔밥 Bibimbap 拌飯 (Boiled rice mixed with vegetables)
3. 불고기 Bulgogi 烤肉 (Marinated, barbecued beef)
4. 갈비 구이 Grilled Galbi 烤牛小排 (Seasoned ribs)
5. 삼계탕 Samgyetang 蔘鷄湯 (Chicken soup)
6. 설렁탕 Seolleongtang 牛雜碎湯 (雪濃湯) (Beef bone soup)
7. 냉면 Naengmyeon 水冷麵 (Buckwheat noodles in a cold broth)
8. 해물탕 Haemultang 海鮮湯 (Seafood stew)
9. 닭갈비 Dakgalbi 烤雞排 (Chicken ribs)
10. 갈비탕 Galbitang 排骨湯 (Beef rib soup)
11. 김치찌개 Kimchi jjigae 泡菜湯 (Kimchi stew)
12. 죽 Juk 粥 (Porridge)
see this for more information:
http://english.tour2korea.com/05food/WhatToEat/quintessential_snacks.asp?konum=1&kosm=m5_2