Cosi

Cosi is a bar in Mykonos Town, sitting on Ενόπλων Δυνάμεων street near the junction with Mattheou Andronikou. It runs nearly around the clock — doors open at 10 in the morning and close at 6 AM — which makes it one of the longer-hours bars on the island, useful whether you want a mid-afternoon drink or a nightcap deep into the early hours.

With a 4.1 rating from over 290 Google reviews and more than 4,500 check-ins on Facebook, Cosi has a consistent following among both visitors and locals who return each season. The Greek-language Instagram post celebrating the annual reopening — "We're back! The day has come to open our doors and welcome you again for another beautiful season at our corner" — gives a sense of the regulars' loyalty.

The bar sits firmly within the Mykonos Town orbit, placing it close to the town's main pedestrian lanes without being buried deep inside the labyrinthine Chora streets, which means it's findable on foot without too much navigation.

What to Expect

Cosi positions itself as a relaxed bar rather than a high-volume club. The opening hours alone set expectations: a bar that opens at 10 AM is functioning as a daytime drinking spot as much as a nightlife venue, suggesting an outdoor seating setup or terrace-style layout that suits afternoon drinks as readily as midnight rounds.

The address places it on a named street in Mykonos Town, which puts it in a more residential-commercial pocket of the Chora rather than on the waterfront strip or directly inside the famous Matogianni corridor. That positioning typically means a slightly calmer atmosphere than the bars clustered around Little Venice or the old port, with a neighborhood bar quality that regulars clearly appreciate.

Based on the social profile — over 2,000 Instagram posts under the bar's account and a price tier listed as high-end (the Instagram bio shows a $$ indicator) — Cosi operates at the premium end of the Mykonos bar market, as is standard across most of the island's hospitality scene. Expect cocktails and spirits at Mykonos pricing, which is elevated compared to other Greek islands.

The bar is compact enough to feel like a local corner spot, which is essentially how regulars describe it — "at our corner" is how the venue refers to itself in its own communications.

How to Get There

Cosi is in Mykonos Town (Chora), on Ενόπλων Δυνάμεων street at the junction with Mattheou Andronikou. The coordinates place it inland from the waterfront, in the quieter grid of streets north of the main tourist pedestrian zone.

From Mykonos Town bus station (Fabrika), the bar is reachable on foot in around 10 minutes, heading into the Chora. From the old port, allow roughly 15 minutes on foot. Taxis drop passengers at the edges of the pedestrian zone; from the nearest drop-off point the walk is short.

Parking in Mykonos Town is limited and not practical for evening visits. The main public parking areas are near Fabrika and the new port, both within walking distance.

Best Time to Visit

Cosi operates year-round during the season, with the same daily hours (10 AM to 6 AM) across all seven days. The bar peaks with the rest of Mykonos between late June and mid-September, when foot traffic and nightlife reach their highest intensity.

For a quieter drink, late morning to mid-afternoon on a weekday is the low-crowd window. If you want the bar at its most animated, weekends after midnight are the obvious choice — Mykonos nightlife consistently runs late, and a venue that stays open until 6 AM is catering directly to that rhythm.

Shoulder season (May, early June, late September, October) brings a noticeably calmer Mykonos. Cosi's loyal local and return-visitor following means it can still be active during these months, but the intensity of peak season is gone. Weather-wise, the Meltemi wind that blows across the Cyclades in July and August is less relevant to an indoor or sheltered bar setting, though it shapes how comfortable any outdoor seating is.

Tips for Visiting

• Confirm the season opening date before traveling. Cosi operates seasonally like most Mykonos bars, and the exact opening day each year varies. Check the Instagram account (@cosi_bar_mykonos) for the season-start announcement.
• Expect Mykonos-level pricing. The $$ price tier signals premium cocktail and spirits prices. Budget accordingly, especially for rounds.
• Use the address to navigate. The junction of Ενόπλων Δυνάμεων and Mattheou Andronikou gives you a precise target. Drop the coordinates (37.4451706, 25.3284876) into your maps app before you leave your accommodation.
• Call ahead for large groups. The phone number is +30 2289 027727. If you're arriving with a party, it's worth a call during daytime hours to check capacity and any seating arrangements.
• Take advantage of the daytime opening. A 10 AM opening is rare for a nightlife bar. If you want a drink away from beach crowds mid-afternoon, Cosi is a practical option.
• Follow the social accounts for events. The bar posts regularly on Instagram and Facebook, and event nights or themed evenings are typically announced there first.
• Plan for a late finish. The 6 AM closing time means Cosi is one of the last places standing on the island. If you're deep into a Mykonos night out, it's worth knowing as a final stop.

Practical Information

• Address: Ενόπλων Δυνάμεων & Mattheou Andronikou, Mykonos Town 846 00, Greece
• Phone: +30 2289 027727
• Hours: Daily, 10:00 AM – 6:00 AM
• Google rating: 4.1 (291 reviews)
• Facebook: facebook.com/cosi.gr
• Instagram: @cosi_bar_mykonos