Based on Holland's Instagram, he appeared to briefly date "Doctor Who" actor Nadia Parkes. In July 2020, the Spider-Man star sparked dating rumours when he posted a photo of Parkes on his Instagram. While the pair never confirmed the rumors themselves, they liked each other's social media posts consistently for months. If they ever were an item, it's unclear when exactly they split, but one can guess it was sometime before July 2021.