The 54-year-old actor - who has not had a serious relationship since he split from third wife Katie Holmes in 2012 - has reportedly been dating an unnamed British woman for several months.
Us Weekly reports that Tom is "smitten" with the woman, who is described as "very normal and pretty" and she has been staying with him at his London flat and his rented cottage on the outskirts of the English capital.
A source said: "He's serious about this relationship and wants to make it work. Tom wants some companionship."
And she has gotten the seal of approval from Tom's sister, Lee Anne DeVette, who has been spending time with the couple.
The insider added: "They go on bike rides through the countryside. Sometimes Tom's sister would join them."
Meanwhile, it has also been revealed that Tom's youngest daughter Suri, 10, who lives with her mother Katie, visited him in the UK during the summer where he was filming 'The Mummy'.
Although the pair have not been photographed together since August 2012, they enjoyed a trip to the Cotswolds and stayed in the village of Bourton-On-The-Water in Gloucestershire before spending time together in London.
A source said: "Everything was treated very discreetly. Suri very important and a special part of his life."
Katie did not accompany Suri on the trip but the youngster was joined by her nanny and a bodyguard.