Chris Martin -- Late Night Stroll with Kylie Minogue ... Hunger Games Over? (PHOTO)

Chris Martin was arm-in-arm with Kylie Minogue -- at 1:30 AM in a London park -- which may or may not be news to his GF of several months.

Chris and Kylie were strolling together early Monday morning after her concert in Hyde Park -- and the late/early hour of has some people thinking he and Jennifer Lawrence are dunzo.

J-Mart seemed pretty tight earlier this month snuggled up in the back of Bono’s SUV, and it's entirely possible Chris and Kylie were just a couple of non-banging pals getting fresh air.