The 32-year-old confirmed he was dating the Suits actress in an official Kensington Palace statement last month (Nov16) and while the American has been spotted in London on previous occasions, they were finally pictured together for the first time on Wednesday night (14Dec16), when they went on a theatre date.
In photos obtained by The Sun newspaper, the couple was pictured walking hand in hand on a busy London street before heading into the Apollo Theatre to watch West End festive comedy Peter Pan Goes Wrong.
"Harry has said his privacy is important to him but they are clearly not afraid to be seen in public together," a source told the publication. "They are clearly crazy about each other and have told friends they are very much in love."
Harry and Meghan, who were dressed casually in denim jeans and beanie hats, were accompanied by just one royal protection officer.
Meghan, 35, reportedly flew into the U.K. from her base in Toronto, Canada on Monday and has been staying at his Nottingham Cottage in the grounds of Kensington Palace.
They made their first public outing together earlier this week when they went shopping for a Christmas tree in Battersea Park, South West London, but this marks the first time they have been caught by photographers.
Meghan has visited Harry in London a reported four times during their estimated five-month relationship, while Harry is said to have diverted his plane journey back to London from the Caribbean, where he was paying a royal visit, to spend a few days in Canada with his girlfriend.
The couple reportedly met back in May in Toronto while Harry was visiting the city to promote the 2017 Invictus Games.