Chef
Olivier Chaignon
Executive Chef, L'Osier
- Discipline
- Chef
- Based in
- Tokyo, Japan
- Venue
- L'OSIER · Restaurant
Known for
- Leading L'Osier to three Michelin stars since 2019
- Refined French cuisine using Japanese and European ingredients
- Gault et Millau Tokyo 2017 Chef of the Year
i. Biography
Technique from France reads differently when it is practiced in Tokyo: the base grammar stays classical, while the margin for excess narrows. In the case of Olivier Chaignon, that path runs from France to Japan through kitchens where discipline, service pressure, and finish matter. The recognition attached to L'Osier — Michelin Guide Tokyo honors that reached three stars and a Green Star in 2022 — is evidence of a restaurant operating at a level Tokyo’s dining culture can measure.
The Trajectory
Kitchen formation begins with repetition before interpretation. At Auberge de la Clé des Champs (from 1994), Olivier Chaignon entered that practical order: prep, seasonality, timing, and the authority of technique. The later move to chef at Taillevent in Paris, France, placed that formation inside the codes of grand gastronomy, where polish is not decorative but procedural. Cooking from that tradition in Japan asks for control without weight. As Executive Chef at Pierre Gagnaire in Tokyo, Japan (from 2005), he worked where Parisian expression met the precision and sensitivity expected around Japanese ingredients. The same Tokyo thread continued at Pierre Gagnaire at the ANA InterContinental Tokyo, Japan (from 2009), extending the work into a city that rewards technical assurance and visual restraint. A dining room such as L'Osier depends on continuity as much as newness. Since 2013, Olivier Chaignon has been Executive Chef of L'Osier, working in a vocabulary shaped by proximity to Japan: clear flavors, considered texture, and plates composed rather than crowded. From 2025, he also serves as Signature Chef on flights from Japan at Air France in Japan to Paris-Charles de Gaulle, taking that same demand for balance beyond the restaurant format.
The Practice Today
The working brief is explicit: "My aim is to create L’Osier’s unique, innovative taste, while preserving L’Osier’s tradition, and the essence of French cuisine." In his wording, inheritance and movement are not opposing tasks. The craft problem is to keep the line intact while allowing L'Osier to speak in its own register: refined without heaviness, current without cutting itself loose from the base cuisine. Ingredient work begins before the pass. "I always encounter something new and interesting when I visit food producers." For Olivier Chaignon, that statement keeps sourcing inside the craft rather than outside it. His cuisine is described as refined French cooking using ingredients from both Japan and Europe to make delicate, innovative harmonies of flavor and texture. The method implied is calibration: softness against crispness, richness against lift, familiar structure against a measured change in expression. Quiet luxury, in this context, is a matter of proportion. At L'Osier, the craft sits in the poise of a sauce, the restraint of composition, and the ability of a plate to hold culinary memory while operating fluently in Tokyo. Olivier Chaignon’s work there is not a break from the cuisine that formed him; it is a continued practice of it under Japanese conditions of attention.
Signature
In Olivier Chaignon’s case, the signature sits on finesse, structure, and a French foundation shaped for a contemporary service context.
Standing
Recognition here spans apprenticeship, individual craft, and restaurant performance: Three Michelin stars for L'Osier, The Tabelog Award: Silver for L'Osier (2024), Chef of the Year (2017), and First prize as a young apprentice chef in France (1996). For Olivier Chaignon, those markers place L'Osier at the center of the Tokyo work while keeping the earlier French formation visible.
Profile updated July 2026
FAQ
Asked of Olivier
What role does Olivier Chaignon hold?
Olivier Chaignon is Executive Chef of L'Osier.
Where did Olivier Chaignon work before?
Earlier in their career, Olivier Chaignon worked at Auberge de la Clé des Champs, Taillevent, and Pierre Gagnaire.
What recognition has Olivier Chaignon received?
Three Michelin stars for L'Osier.
