Is rey mysterio and batista cousins?

Q: Are wwe wrestling favourites Batista and Rey Mysterio brothers?

no, "The Animal" Batisa and "The Biggest Little Man" Rey Mysterio are not brothers, many wwe fans suspect they are bothers because of their respect and love for each other but no they are not family, BEFORE, but now they can't stand eachother

- Wael Maraach

Rey Mysterio and Batista are not brothers, they hate each other.

It's just a saying they probable like each other in real life but in WWE they hate each other.