| Birth Date: | 20 January 1954 |
| Birth Place: | Ebisu, Shibuya-ku, Tokyo, Japan |
| Ru Position: | Fly-half |
| Years1: | 1970s-1985 |
| Clubs1: | Shin-Nittetsu Kamaishi |
| Repyears1: | 1974-1984 |
| Repcaps1: | 24 |
| Reppoints1: | 73 |
is a former Japanese rugby union player and a sports journalist. He played as a fly-half.
Matsuo was one of the greatest Japanese rugby players of all times and played for Shin-Nittetsu Kamaishi. He left competition in 1985, after seven consecutive wins.
He had 24 caps for Japan, from 1974 to 1984, scoring 3 tries, 5 conversions, 14 penalties and 3 drop goals, in an aggregate of 73 points.
After finishing his player career he became a sports journalist for the Japanese television.