"Buenos Aires" is the second Japanese single by South Korean–Japanese girl group Iz*One.

On May 3, was revealed that Iz*One would release their second Japanese single.

[1] The music video teaser for "Buenos Aires" was released on May 27.

[2] Physical releases include DVDs with music videos for the title track and one B-side.

[3] All lyrics written and songs produced by Yasushi Akimoto.