Dionini Ramon "Johnny" Guzmán Estrella (born January 21, 1971) is a Dominican former Major League Baseball pitcher. He played for the Oakland Athletics during the 1991 and 1992 seasons. He appeared in seven games, all as a relief pitcher.
Johnny Guzman
| Given name: | Dionini Ramon Guzman |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 5'10" / 155 lbs |
| Bats/Throws: | R / L |
| Born: | Jan 21, 1971 in Hatillo Palma, Monte CristiDO |
| Age: | 54 |
| Debut: | Jun 8, 1991 |