The 35-year-old Night Manager star introduced the 26-year-old singer to his mom Diana on Friday, while visiting her hometown of Suffolk on the east coast of England.
The introduction came a day after Swift introduced Hiddleston to her parents Scott and Andrea at her Nashville, Tennessee apartment.
In photos of the meeting, the trio looked happy, walking arm-in-arm together down the street near Diana's home in the town of Ipswich. They were all smiles on the sunny day, Swift dressed in a chic black jumpsuit and black flats and the Hiddlestons both in jeans and blue tops.
Later, the group was spotted taking a stroll down a beach together, with Swift and Tom holding hands.
Earlier in the week, the new couple spent time in Nashville, where they danced and cuddled at Selena Gomez's concert – getting particularly close during Gomez's hit "Hands to Myself." On Wednesday evening, the pair had a dinner date at Ruth's Chris Steakhouse.
After meeting Swift's parents on Thursday, the couple dined at farm-to-fork restaurant Adele's in downtown Nashville, with singer-songwriter Holly Williams and her husband Chris Coleman. Hiddleston played Holly's grandfather Hank Williams in the film I Saw the Light.
Swift and Hiddleston went public with their romance earlier this month. The duo were photographed kissing a few weeks ago, holding hands and cuddling on the beach in Rhode Island.
PEOPLE exclusively broke the news earlier this month that Swift and her ex, Calvin Harris, had split after 15 months of dating.