
4.6 from 1,950+ Google reviews#1 on TripAdvisor
Birthdays at Diego's
Birthdays worth the candles
18th, 30th, 50th, 70th: we have thrown them all. A private room, a rooftop, charcoal-grilled feasts and a team that makes a proper fuss of the birthday guest. Who, with 10 paying adults at the table, eats free.
- Birthday guest eats free with 10 paying adults
- Fiesta Room seats 40
- Decorations welcome
- Sparklers included
Milestone birthdays are our speciality
Light-up numbers, balloon arches, boho table styling or just a long table of your favourite people: the Fiesta Room takes it all, and the terrace does summer birthdays like nowhere else in Southampton.
Birthday meal on us with 10 paying adults
Bring 10 paying adults and the birthday guest's main course is on the house, with sparklers and a proper Diego's send-off. Just tell us it's a birthday when you enquire, and bring ID.
Food that feeds a party
Bottomless wings for the big appetites, sharing platters for the table, cocktails at 2 for £15 during Amigo Hour. Nobody leaves a Diego's birthday hungry.
Birthday offer terms
- Birthday guest eats free with 10 paying adults.
- Valid ID required.
- Complimentary main course only.
- Cannot be combined with other promotions.
- Full T&Cs apply.

The food
Sample birthday menus
Built around your numbers and budget. The birthday guest eats free with 10 paying adults.
- The Party Buffet: whole rotisserie chickens, wings, chorizo, salads and sides, served to the room
- Sharing feast: mixed parrillada platters and rib & wing feasts down the middle of the table
- Bottomless Wings night: 90 minutes of endless piri piri wings, Tuesdays and Wednesdays, £22.99 per person
- Arrival drinks: sangria jugs, prosecco or a cocktail on arrival for every guest
Good to know
Your questions, answered
Does the birthday person really eat free?
Yes, with 10 paying adults in the party the birthday guest's main course is free, with sparklers to finish. Valid ID is required, it covers the main course only and it cannot be combined with other promotions. Just mention the birthday when you enquire or book.
Can we decorate the room for a birthday?
Absolutely. Balloons, banners, light-up numbers and your own cake are all welcome in the Fiesta Room, and we will help you set up before your guests arrive.
How many people can I invite?
The Fiesta Room seats up to 40. Larger group tables in the main restaurant work brilliantly for 10 to 25, and exclusive hire takes up to 60.
Do you do anything for the birthday moment?
We bring the cake out with sparklers and make the moment happen. Tell us the timing you want and we will build the evening around it.
Let's plan it
Plan your birthdays with us
Two minutes now, one very good night later. We'll call you back today.
More ways to celebrate
Or see everything on the events and private hire hub.
From the journal
Reading for your birthdays
- 7 August 2026Birthday Party Venue Southampton: 30th to 50thPlanning a 30th, 40th or 50th? Here is how to choose a birthday party venue in Southampton that suits your crowd, your budget and your milestone.
- 2 July 2026Planning a Birthday Party in Southampton? Here's Your GuideVenues, food, decorations and the questions to ask: how to plan a birthday party in Southampton, from a restaurant that hosts them every week.
