Not sure what its canon-level is, but according to "Star Wars: The Essential Guide to Alien Species", humans are the galaxy's most common sentient species - of which there are thousands of variations & sub-species found throughout Republic/Imperial space. Although it never specifically calls them "Homo Sapiens", it does mention that the human race is believed to have originated on Coruscant, which would therefore make all other human races a subset of that original race.
So, if the intent of your question is "Are they all human, same as us?", then the answer is yes.
If your question means exactly what it says - "Are they Homo sapiens?", as opposed to Homo Starwarsicus or something, then I guess the answer would be No... they're a different kind of human.
Keep in mind, within the context of the lore, everything in Star Wars happened a "long, long time ago in a galaxy far, far away." Within that context, Earth is just one more human 'colony' that hasn't yet discovered (or re-discovered) space travel, and is basically ignorant of the rest of the universe.