Kostanty is a boy name. It last appears in U.S. records in 1916. Kostanty first appears in 1916 and peaked in 1916 (5 births).
How popular is Kostanty? (U.S. births per year)
Boys named Kostanty
Boys named Kostanty per year · hover for count and boys rank · Source: U.S. Social Security Administration, national data 1916–1916 · U.S.+territories from SSA territory files (1998–1916)