What is the communist logo?

Answer 1

Although each communist country would have its own flag (with a logo on it), the communist logo in general (meaning most identifiable to most people) was the Red Star.

Some "Red Stars" might have an object next to it some Red Stars might have had something circling it, some Red Stars might have had different colored backgrounds, but the focus would be on that "Red Star."

To give you an example on how influential that "Red" star was, during aerial combat over the skies of North Vietnam, US jet pilots who were shooting at North Vietnamese Air Force MiG jets would "search", be on the "lookout", and "concentrate" their gunsights on "that Red Star" as their aircraft closed in on the kill. When downing that enemy jet, the US pilot's afteraction report might be read, "I saw that Red Star and blasted away" (US doctrine dictated that positive VISUAL identification was made on a jet before opening fire, as the sky was full of US aircraft during the war). The point of this is example is this: The North Vietnamese Air Force stars painted on their MiG17s, 19s, and 21s were YELLOW!

But US pilots were trained to see Red.

Answer 2

There is no communist flag communism is just an idea, but if you are referring to the flag of the Soviet Union (which is one of the most pictures associated with communism) then its a red flag with a yellow hammer and sickle.

Answer 3

it symbolises unity of peasants and workers