Zond 3MV-1 No.2 (or No. 4A), also known as Venera 1964A in the West, was a Soviet spacecraft, which was launched in 1964 as part of the Zond programme. Due to a problem with its carrier rocket third stage, it failed to reach low Earth orbit.
Payloads are separated by bullets ( · ), launches by pipes ( | ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in brackets.