King Gogugwon of Goguryeo (?–371, r. 331–371) was the 16th king of Goguryeo, the northernmost of the Three Kingdoms of Korea. He was the son of King Micheon and Lady Ju.

Goguryeo faced devastation by the Murong Xianbei people who attacked Goguryeo. Hwando was destroyed again by them in 341. Buyeo was also destroyed by the Xianbei in 346.

The reign of Gogukwon suffered severely from continuous foreign invasions, not only those of Chinese forces including Xianbei but also of Baekje, southernwest part of Korean peninsular. Particularly, the Xianbei state of Former Yan invaded the capital in 342, capturing Queen Ju, the mother of Gogukwon and his concubines and also digging up the corpse of his father, Micheon. Since the capital was thoroughly destroyed, Gogukwon firstly constructed Guknae seong as an alternative fortress in northern sphere and temporarily moved the capital to Pyongyang, present-day capital of North Korea. While he could get back the corpse of his father, it took about 13 years for his mother to return to Goguryeo.

In 369, Gogukwon personally led expedition of more than 20,000 troops. Without success, Geunchogo's son Geungusu overtook, counterattacked and killed Gogugwon in battle, at Pyongyang Castle, the only ruler of Goguryeo to die on a battlefield. He was buried in Gogugwon.

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故國原王（？ - 371年），高句麗第16任君主，名斯由、劉、釗，331年-371年在位。

在與鮮卑慕容家族建立的前燕爭奪滿洲一帶的戰爭中，在故國原王任內，前燕取得壓倒性的優勢。

342年，前燕又發動了對高句驪的戰爭，前燕軍重創高句驪軍隊。又發掘故國原王的先王美川王之墓，擄走美川王的尸體和故國原王的生母周氏，並將高句驪歷代積累下來的金銀全部搜刮一空，虜走了高句驪百姓五萬多口，最後一把火燒了高句驪王宮，並將丸都城再次變為平地。

343年（東晉咸康八年），高句驪重修由于毌丘儉東征而被摧毀的舊丸都城，並于同年秋天又一次移居丸都城。4個月後，丸都山城就再次毀于戰火。

344年，故國原王派王弟到前燕都城龍城稱臣納貢。前燕歸還美川王的尸體，依然扣留故國原王的生母周氏，此後高句驪元氣大傷，再沒有反抗前燕的能力。

345年（東晉咸康九年）十月，慕容恪再度進攻高句驪，輕鬆攻取了南蘇城（今五龍山城南距蘇子河8公里）。

355年，前燕入主中原後，和高句驪和解，歸還故國原王的生母周氏，並封故國原王為「征東大將軍、營州刺史、樂浪公、高句驪王」。

在朝鮮半島的爭奪戰中，本是同源的百濟于371年傾全國之力發兵北上，並且圍困了平壤城，故國原王中箭身亡。高句麗南下朝鮮半島的腳步受到南部百濟的有力阻擋。同年其子小獸林王即位。

後世在朝鮮民主主義人民共和國黃海南道安岳郡發現的古墓被朝鮮官方認為是高句麗的21代王故國原王（331—371年）的墓即安岳3號古墓。