Akilles "Aki" Eero Johannes Järvinen (19 September 1905 – 7 March 1943) was a Finnish decathlete.

He competed at the 1928, 1932 and 1936 Olympics and won two silver medals, in 1928 and 1932; he served as the Finnish flag bearer at all three games.

[2] Järvinen died in 1943 when his VL Pyry trainer aircraft crashed during a test flight in World War II.

[1][3] His younger brother Matti was an Olympic champion and 10-time world-record breaker in javelin throw.

His elder brother Kalle was an Olympic shot putter, whereas their father Verner won one gold and two bronze Olympic medals in the discus throw.