The following spacecraft sucessfully flew to Venus (some did not accomplish their mission goals, or were only fly-bys, but did reach the vicinity of the planet):
Sputnik 7 - Venera 1 - Mariner 1 - Sputnik 19 - Mariner 2 - Sputnik 20 - Sputnik 21 - Venera 1964A - Venera 1964B - Cosmos 27 - Zond 1 - Venera 2 - Venera 3, Venera 4 - Mariner 5 - Cosmos 167 - Venera 5 - Venera 6 - Venera 7 - Cosmos 359 - Venera 8 - Cosmos 482 - Mariner 10 - Venera 9 - Venera 10 - Pioneer Venus 1 - Pioneer Venus 2 - Venera 11 - Venera 12 - Venera 13 - Venera 14 - Venera 15 - Venera 16 - Vega 1 - Vega 2 - Galileo - Magellan -Cassini - Venus Express - MESSENGER - Planet-C (Venus Climate Orbiter)
(See the related link below)