Vineria Reggio is a great enoteca located directly on Campo di Fiori. They have a huge selection of wines by the bottle and offer around 30 different wines by the glass too.
If you drink your glass of wine inside at the bar you pay 1 Euro less by the glass than if your served outside. It's great to sit inside and watch people but its fantastic sitting outside in the evening overlooking the piazza.
Great place to sit outside and be a part of or just watch the action in Campo dei Fiori until the wee hours of the morning.
Drinks are very resonably priced and they have (obviously from the name) a huge selection of wines and grappas etc. available.
Dress Code None.
This wine bar in Campo d'Fiori is always crowded. As well as a large assortment of wines, it offers typical cold wine bar food and some specialities.