Yes, Catholics celebrate Mothering Sunday. It is a day to honor mothers and motherhood. The Catholic church has a long tradition of honoring mothers on this day. The feast of the Annunciation is also observed on Mothering Sunday. Congratulating our mothers is a holy thing. We should send them our best wishes, tell them what we feel, and express our deepest gratitude. We can do all this with the help of Catholic Mother's Day cards.