Rome · Izakaya · a la carte
Otosan
Kansai izakayaJapanese-led kitchenKansai regionalOkonomiyakiRamenTrieste
Otosan brings Kansai home cooking to Rome: okonomiyaki, ramen, doteyaki and kakuni prepared by Japanese chefs Aki Kobayashi and 30-year veteran sushi master Fumio Saito.
- Price
- ¥¥
- Area
- Trieste
- Chef
- Aki Kobayashi / Fumio Saito
Plate № 116
About
Otosan — meaning 'father' in Japanese — is a true neighbourhood izakaya in Rome's Trieste district, serving the homely, robust flavours of the Kansai region. Chef Aki Kobayashi leads the hot kitchen while Maestro Fumio Saito, with over three decades of experience, handles sushi. The menu centres on dishes rarely seen elsewhere in Rome: doteyaki (beef offal in miso), kakuni (braised pork belly), okonomiyaki and rich regional ramen. Sister restaurants Okasan and Hiromi Cake round out the family's Japanese dining group, making this trio the most cohesive authentic Japanese operation in the city.
Neighborhood & visiting
Otosan sits in Trieste, one of Rome's neighborhoods where authentic Japanese kitchens have taken root. The house does not publish an online booking link; call ahead to secure a seat, especially on weekends. Check the posted hours before you go — traditional izakaya restaurants often close between service periods.
Why it's on Washoku Guide
- Authentic Kansai regional cooking — okonomiyaki, doteyaki and kakuni rarely found in Rome
- Two Japanese chefs with decades of combined experience
- Part of Rome's most authentic Japanese restaurant family (with Okasan and Hiromi Cake)
- Open daily for both lunch and dinner in a welcoming neighbourhood setting
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Frequently asked
About Otosan
- Is Otosan an authentic kansai izakaya restaurant in Rome?
- Yes — Otosan is featured in Washoku Guide because it meets our authenticity standard for kansai izakaya in Rome: a kitchen grounded in Japanese technique, ingredients and preparation consistent with Japanese practice, and a focused izakaya format.
- Where is Otosan located?
- Otosan is located at Via Nemorense 101, 00199 Roma, Italy, Rome, Italy in the Trieste neighborhood.
- Do I need a reservation at Otosan?
- Otosan does not publish an online reservation link. Walk-ins may be possible, but for popular izakaya restaurants in Rome we recommend calling ahead.
- What is the price range at Otosan?
- Otosan sits in the ¥¥ price range — typical for kansai izakaya of this format in Rome.
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