The couple looked very elegant for the big day, with Mark looking dapper in a classic tuxedo, and Doireann stunning in a unique dress which she shared details of to her followers on Instagram.
The radio host wowed in a dress by Australian-based designer Christie Nicole, crafted from a textured ostrich feather fabric.
The unique gown retails at €7,000 and Doireann bought the dress from The White Gallery boutique in Newry.
Read more: Doireann Garrihy and husband Mark Mehigan jet off on romantic honeymoon after winter wedding
Read more: Doireann Garrihy marries Mark Mehigan in stunning winter wedding
Doireann has shared with her followers that the stunning dress was the third she had tried on for the big day, and how she immediately knew it was “the one”.
On her Instagram story, the presenter revealed that her shoulders “instantly dropped” when she looked in the mirror in the dress.
“I knew it was me and I would be comfortable,” she added.
Doireann completed the ensemble with a practical pair of pointed heels from ASOS, which cost her only €43.
The presenter and podcaster tied the knot in the lavish K Club in Kildare.
Doireann and Mark got engaged last November, a year after going public with their romance.
The comedian got down on bended knee in Dublin 's Phoenix Park, near where the Dancing with the Stars host grew up.
"It's right beside my family home in Castleknock, it's where I learned to cycle and it was my sanctuary during lockdown. It holds a special place in my heart," Doireann previously told The Sunday Times.
"Nothing can prepare you for just how lovely people are when you get engaged. Mark is amazing. From the outside looking in it probably seems quite fast, but I really feel like I've known him forever."
The couple tied the knot at a local church in Straffan last Friday, before hosting their wedding reception at the lavish K Club in Co. Kildare.
The wedding was beautifully decorated, with Doireann posting a photo of one of the tables on her Instagram story, captioning it: “Obsessed with our black candles. I really wanted to room we had dinner in to feel winter wonderland-y rather than Christmas-y (the hotel was so gorgeously Christmas-y everywhere else)”.
The black candles matched her bridesmaid’s beautiful black dresses, which perfectly suited the winter wonderland vibes Doireann was going for.
A host of famous faces attended the celebration, including Doireann’s former 2FM co-hosts Carl Mullan and his wife, who recently announced that they would be having their third child together.
The newly-weds have since jetted off on a luxurious and romantic “honeymoon adventure” with their first destination being Danish capital Copenhagen.