A poll for wedding planning website The Knot found 77 per cent of men seek their father-in-law's permission before proposing to their daughter.
That compares to 74 per cent who did so in 2013 and 71 per cent in 2011.
The figures defy claims from some that the practice is irrelevant today, or avoided because it is perceived to be sexist.
Harry Benson, a Christian and the Research Director for the Marriage Foundation, told The Times asking for your father-in-law's blessing helps marriages last longer by ensuring men have properly thought through their decision before going ahead with it.
He said: "It shows you, as a man, are serious about marrying this man's daughter.
"It shows you're committed and deciding rather than pushed and sliding."
