Agapius Masong Amo (born April 12, 1960) is a former long-distance runner from Tanzania, who represented his native country in the men's marathon at the 1984 Summer Olympics. There he finished in 21st position, clocking 2:16:25 minutes. He finished fifth at the 1983 World Championships. He won the Stockholm and Belgrade Marathons during his career.

Year	Competition	Venue	Position	Event	Notes
Representing  Tanzania
1983	World Championships	Helsinki, Finland	5th	Marathon	2:10:42
1984	Stockholm Marathon	Stockholm, Sweden	1st	Marathon	2:13:47
	Olympic Games	Los Angeles, United States	21st	Marathon	2:16:25
1991	Belgrade Marathon	Belgrade, Yugoslavia	1st	Marathon	2:16:23

• Agapius Masong at World Athletics