Dark Souls 3 Boss names have been revealed!

Additionally, according to a Reddit user, the soundtrack includes 24 tracks, 5 being non boss tracks.

“24 tracks on the soundtrack. The first 4 are non-bosses, so the boss track list starts with #5. #24 is “Epilogue,” so another non-boss track. I’m curious about #23, which appears to read “Secret _____.” Might be a hidden final boss? Or, like Ash Lake / early Yahar’Gul tracks, just background music for an area.
Either way, that leaves 18-19 unique presumed boss tracks. Some of those might be reused for different bosses as From has usually done, some of them might be for levels with background music. You can be sure that the “15 Bosses” tidbit from The Know leak is wrong though.”

Dark Souls 3 launches on Xbox One, PS4 and PC next month.