There is no official Freemason flag, as Freemasonry is not a sovereign nation and does not have its own flag recognized by international bodies or space agencies. However, individual Freemasons may have brought personal items, including Masonic regalia or symbols, with them on space missions, including those to the moon.

One notable example is astronaut Buzz Aldrin, who was a member of the Montclair Lodge No. 144 in New Jersey. During the Apollo 11 mission in 1969, Buzz Aldrin carried a special deputation from the Grand Master of Masons in Texas, as well as a flag patch from the Scottish Rite Southern Jurisdiction, inside his space suit. While Aldrin did not physically plant a Freemason flag on the moon"s surface, his association with Freemasonry has led to speculation and folklore surrounding the presence of Masonic symbols on the lunar surface.

However, it"s important to note that any personal items brought by astronauts on space missions are typically of personal significance and do not represent official endorsements or affiliations by organizations such as Freemasonry. The notion of Freemason flags or symbols being planted on the moon is more symbolic and speculative than factual.