The No.7-seeded Hingis and Paes never faced a break point and won almost three times as many points - 55 to 20 - to beat the No.5-seeded Babos and Peya in 40 minutes on Centre Court, 6-1, 6-1.
It's also the 18th overall Grand Slam title of her career. She has five singles, 10 doubles and now three mixed. By major it's nine Australian Opens, two French Opens, five Wimbledons and two US Opens.
"Well, I think that was the best we played pretty much since Australia in all the matches. I think it's pretty exciting to come out like this in the finals of a Grand Slam," Hingis said after the match.
"Beating Bryan and Mattek was definitely a huge win that day. It was my second match in that day. I'm grateful to have had Leander on my side to pull me through that one. And today I had a great night after last night, so... a good night's sleep, and I was ready to go all the way in another final today."
Hingis was asked how it felt to win two Grand Slam titles with two Indian players in two days.
"Well, with Leander we played World TeamTennis for the last two years. I'm already looking forward to playing together again in two weeks. And with Sania, we only started in March this year. But since then it's been a great ride for me. I already feel like a quarter Indian. I've been to India three times already, last November, in February - no, the fourth time actually. Meeting the Prime Minister and everything."
And what clicks so well between Hingis and Paes specifically?
"Leander is just a great person who I know is always a great help, whether it's practice or off the court. We make each other better. It's even more important to get along off the court than on the court."
Paes now has 17 overall Grand Slam titles to his name - eight in men's doubles and nine in mixed.
With the US Open just a matter of weeks away, can Hingis and Paes make it three of four?