Marché des Enfants Rouges
Oldest market in Paris
Tuesday-Saturday 8am-8:30pm, Sunday 8:30am-5pm
http://marchedesenfantsrougesfr.com/

Marché de Bastille
One of the biggest markets in Paris
Access: Boulevard Richard Lenoir 75011
Thursday and Sunday from 7am-3pm
http://www.timeout.com/paris/en/shopping/marche-bastille