Ven. Guo Jun (果峻; Pinyin: Guǒjùn) (born 1974) is a Buddhist monk in Singapore, and one of the youngest Dharma heirs of Chan Master Sheng-yen. His complete Dharma name is Zhengyan Guojun (正彥果峻).  He has published two books: Essential Chan Buddhism and Chan Heart, Chan Mind
Before and after his ordination, he earned degrees in various fields of study. He has a diploma in biotechnology from Ngee Ann Polytechnic, Singapore. He also earned his degree in Buddhist philosophy from Fu Yan Buddhist Institute, Taiwan, Bachelor of Arts in Psychology and Sociology from Monash University, Australia, and Master of Buddhist Studies from University of Sydney, Australia.
Life and Religious TrainingEdit
Ven. Guo Jun started practicing meditation intensely in 1997. He studied various traditions of Buddhist practice, from Tibetan Buddhism, Theravada Buddhism, and also Mahayana tradition, including Ch'an Buddhism under the guidance of Ven. Master Sheng-yen. He entered solitary retreat in 1999 in Korea at Hwa Gye Sa Buddhist Monastery and Song Kwang Sa Buddhist Monastery.
After learning under personal tutelage of Venerable Master Shengyen Sheng-yen from Dharma Drum Mountain, Taipei, Taiwan, he got Inka Shomei (verification of attainment／印可证明). In 2005 he received lineage transmission as the 58th generation Dharma heir of Linji Chan school and 53rd generation Dharma heir of Caodong Chan School of Chinese Buddhism. 
He also got Inka Shomei from Venerable Master Qinying from Fuhui Monastery, Taipei, Taiwan and received transmission as the 42nd generation of Dharma heir of Xianshou Huayan and Cien East Asian Yogācāra schools of Chinese Buddhism. 
On the 28th of August 2013, Master Hsing Yun, the founder of Fo Guang Shan, held the passing of doctrines ceremony for the 69 from the second generation of disciples at Tathagata Hall and Venerable Guo Jun was one of them. 
He speaks Mandarin, Korean, and English. He has traveled around many parts of the world to share his experience, including Singapore, Australia, Indonesia, United States, Luxembourg, Poland, Croatia, and Switzerland. He is a member of Australian Psychological Society. He is also a spiritual and guiding teacher of Chan Community Canada,  and Dharmajala Indonesia. He was the abbot of Dharma Drum Retreat Center in Pine Bush, New York from 2005 to 2008. Currently he is the abbot of Mahabodhi Temple in Singapore.