Saint-Denis Flea Market
Edition 2026 Car Boot Sale Flea Market Outdoor

Saint-Denis Flea Market

The traditional patron saint flea market in Le Mesnil-Saint-Denis

Le Mesnil-Saint-Denis — Yvelines (78) 150 exhibitors
Dates 11 Oct 2026
Location Le Mesnil-Saint-Denis (78)
Admission Free
Exhibitors 150 exhibitors

About Saint-Denis Flea Market

The Saint-Denis Flea Market is a traditional event in Le Mesnil-Saint-Denis, held each October on the church square to celebrate the village's patron saint day. With about 100 to 200 exhibitors, funfair, catering and entertainment, it blends flea market, conviviality and traditions in a unique festive atmosphere that attracts many bargain hunters from southern Yvelines.

A flea market linked to patron saint tradition

Few flea markets preserve the direct link to a traditional patron saint festival. The one at Le Mesnil-Saint-Denis does: organised around Saint Denis, the village's patron saint, it perpetuates an ancient tradition where the religious and patronal feast was accompanied by a market and popular festivities. Today, the religious dimension has faded but the village festive spirit remains.

Place de l'Église, historic village heart

The event takes place at Place de l'Église, 1 rue Henri Husson, in the historic heart of Le Mesnil-Saint-Denis. This architectural setting gives the flea market a particular flavour: stalls set up around the religious building, in a heritage setting that recalls the tradition's antiquity.

One hundred to two hundred exhibitors

The Saint-Denis Flea Market generally gathers between 100 and 200 private exhibitors, making it a significant event at the southern Yvelines scale. Exhibitors set up from 7:30 AM and the event runs until 5 PM. Stands cost €20 per linear metre.

A funfair completes the flea market

The Saint-Denis Flea Market is not limited to browsing: it includes a real funfair, entertainment and outdoor catering reserved for the organising festival committee. This global format makes it a complete Sunday outing for families.

Le Mesnil-Saint-Denis, village at the gates of Chevreuse

Located in the Haute Vallée de Chevreuse Regional Natural Park, Le Mesnil-Saint-Denis is a commune of nearly 7,000 residents that has preserved its rural character and heritage.

Saint-Denis Flea Market — edition 2026

The Saint-Denis Flea Market will be held on Sunday 11 October 2026 at Place de l'Église in Le Mesnil-Saint-Denis, from 8 AM to 5 PM. Between 100 and 200 private exhibitors for this traditional patron saint event with funfair and catering. Free admission.

Prices Saint-Denis Flea Market 2026

Free admission. Exhibitor stand: €20 per linear metre.

Practical information — Saint-Denis Flea Market

Practical Information

  • Location: Place de l'Église, 1 rue Henri Husson, Le Mesnil-Saint-Denis (78320)
  • 2026 date: Sunday 11 October 2026
  • Hours: 8 AM - 5 PM (setup from 7:30 AM)
  • Exhibitors: About 100-200
  • Stand: €20 per linear metre
  • Admission: Free
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Where does it take place Saint-Denis Flea Market

Place de l'Église

Place de l'Église, 1 rue Henri Husson, 78320 Le Mesnil-Saint-Denis

Saint-Denis Flea Market in brief

Car Boot Sale Flea Market Outdoor Annual Mixed Free Admission Family-Friendly Yvelines Annuel (octobre, fête patronale)