Isla Fisher shared a sweet Father’s Day message to her ex-husband, Sacha Baron Cohen, on Sunday, June 15. The divorced couple share daughters Olive, 17, and Elula, 15, and son, Montgomery, 8.

Duchess Meghan shared never-before-seen videos of Prince Harry with the kids Archie and Lilibet for Father's Day: "Our favorite guy."

Christian Combs, whom Diddy shared with late model Kim Porter, posted a throwback photo of himself as a young boy with the hip-hop titan. “Happy Fathers Day Pops!!” the 27-year-old wrote. “I Love you & miss you !!! We waiting for you at [home].”

On Sunday, June 15, the 16-year-old son of Matthew McConaughey and Camila Alves McConaughey shared a series of photos on his Instagram in honor of his dad on the summer holiday. In one photo, a much younger Levi stands with his dad on the beach as Matthew looks out to sea.

Jennifer Garner paid tribute to Ben Affleck in a short but sweet post for Father’s Day on Sunday. The two, who were married for 10 years, share three teenage children together: Violet, 19, Seraphina, 16, and a son named Samuel, who is 13.

Hoda Kotb is honoring her ex-fiancé, Joel Schiffman, on Father's Day. On Sunday, June 15, Kotb celebrated the holiday by penning a special tribute to Schiffman, with whom she shares daughters Hope Catherine, 5, and Haley Joy, 9. In the post, the mom of two shared photos of Schiffman with his two girls, calling him a "great dad."

From first pitches to families showing up at pre-game, check out how these players celebrated Father's Day around the league

For some, today it is a time to fire up the grill, hand Dad a new set of tools and enjoy ... . For others, it is a bittersweet day.