Reijo Einar Ståhlberg (born September 21, 1952 in Ekenäs, Finland) is a 194 cm former Finnish shot putter whose competitive weight was 128 kg. He holds the Finnish shot put record of 21.69 meters and represented Finland in the 1976 and 1980 Olympics, placing 11th and 4th respectively. In the European Championships of 1974, he came in 11th, in 1978 4th, and in 1982 9th. He also won nine Finnish national championships and 3 European Indoor Championships in 1978, 1979 and 1981. The fourth Finn to put the shot 20 meters or more, Ståhlberg has been president of the Finnish 20 meter club since its inception in 1983.