Tom Brady isn't harboring any ill will on Mother's Day -- in fact, it's the opposite ... 'cause the guy's wishing his two exes/baby mamas a happy holiday, with photo evidence to boot.
The ex-QB threw up a post on Instagram Sunday to celebrate the mothers in his life -- including his ex-wife, Gisele Bundchen, and his ex-GF Bridget Moynahan ... who's the mother of his 15-year-old son, Jack. Gisele, of course, is the mother of his two younger kids.