Bad news, cause OP either didn’t know or chose to be vague about it: It’s not an ACTUAL Barbie doll, it’s part of an Argentinian art exhibit called Barbie: The Plastic Religion.
Good news: There’s also a Saint Sebastian Ken
for anyone interested I found the line up
they are mostly christian figures
many are religious figures from Argentina and other places in Latin America (like la virgen de lujan or la difunta correa)