The 40-year-old actor has stayed on good terms with the Australian model - the mother of his six-year-old son Flynn - since they parted ways in 2013.
Though he said he would happily attend Kerr's nuptials to Snapchat founder Evan Spiegel, he hasn't been asked to go, reported Contactmusic.
"I haven't received an invite yet but I would be (going if I did get an invite) - it's all harmonious so I am blessed," Bloom said during an interview with Radio X.
And if his invite doesn't come through, the "Pirates of the Caribbean" star has a back-up plan to keep updated with the nuptials.