1990–91 Asia Cup
| Dates | 25 December 1990 – 4 January 1991 | 
|---|---|
| Administrator(s) | Asian Cricket Council | 
| Cricket format | One Day International | 
| Tournament format(s) | Round-robin | 
| Host(s) | India | 
| Champions | India (3rd title) | 
| Runners-up | Sri Lanka | 
| Participants | 3 | 
| Matches | 4 | 
| Player of the series | Not awarded | 
| Most runs | Arjuna Ranatunga (166) | 
| Most wickets | Kapil Dev (9) | 
The 1990–91 Asia Cup was the fourth Asia Cup tournament, and was held in India between 25 December 1990, and 4 January 1991. Three teams took part in the tournament: India, Sri Lanka and Asian leading associate member Bangladesh. Pakistan had pulled out of the tournament due to strained political relations with India.
The 1990–91 Asia Cup was a round-robin tournament where each team played the other once, and the top two teams qualifying for a place in the final. India and Sri Lanka qualified for the final in which India beat Sri Lanka by 7 wickets to win its second consecutive (and third in total) Asia Cup.