Restaurant
Onsen Japanese
609 Lonsdale St, Melbourne VIC 3000, Australia
Find Onsen Japanese
609 Lonsdale St, Melbourne VIC 3000, Australia
Directions ↗*Opening hours may differ during holidays.
Book NowAbout Onsen Japanese
Right on Lonsdale Street, Onsen Japanese transports Melbourne noodle obsessives straight into a Tokyo alley with rich, slow-cooked tonkotsu broth. The space is tight and narrow—paper lanterns overhead, Japanese tracks in the background, and solo counter stools lining the bar. Regulars drop in for the signature pork broth, dense with umami and paired with firm, springy noodles, or ramp it up with the spicy tonkotsu for a sharp chili kick. For rice over soup, unagi don arrives coated in a caramelized tare glaze alongside tender ribbons of egg crepe. Kitchen tickets clear in minutes via QR code, giving CBD desk workers a swift, quiet escape before heading back to the pavement.
- Rich Tonkotsu Broth: Pork broth simmered deep and savory, served alongside firm noodles and a balanced spicy variation.
- Tokyo Alley Ambience: Lanterns, background music, and dedicated single-diner counter stools recreate a compact Japanese noodle bar.
- Swift CBD Counter Service: Fast turnaround times and direct mobile ordering get steaming bowls to your stool within minutes.
- Glazed Rice Bowls: Savory rice bowls, including glazed unagi don layered with finely shredded egg crepe.
What's On at Onsen Japanese
Upcoming events, special menus and other reasons to plan a visit.
No events or specials listed right now.
Why Choose Onsen Japanese
Rich tonkotsu broths, intimate solo counter seating, and fast-paced Tokyo diner energy on Lonsdale Street.
Deep, Savory Tonkotsu Broth
Slow-simmered pork broth delivers intense, deeply concentrated umami balanced with firm, bouncy noodles.
The noodles are cooked perfectly, offering a great firm texture that complements the dense broth.
Mimmin Supercute Crispy Katsu & Comforting Rice Bowls
Crispy katsu and tender stewed meats pair with balanced Japanese curry and aromatic donburi rice bowls.
The katsu curry was very flavourful without being too spicy, and the pork was crispy.
Caitlin C Authentic Tokyo Alleyway Atmosphere
Traditional lanterns, Japanese background music, and alleyway-style decor evoke genuine memories of Tokyo.
the whole setting with the lanterns, music, art and atmosphere transports you instantly to Japan.
Deb Bradley Welcoming Solo Counter Seating
Dedicated solo dining counters and cozy bench seating make independent meals effortless and relaxed.
have a one person seat so it's comfortable if you eat by yourself.
haloha haloha Speedy Turnarounds in Minutes
Quick digital ordering and an ultra-fast kitchen deliver steaming bowls to tables within minutes.
order via qr code, our food came within 5 minutes.
Joie Lou Convenient Melbourne CBD Refuel
A cozy, low-stress retreat right on Lonsdale Street offering an effortless refuel before transit or work.
this is a perfect lunch spot for anyone working around the CBD, a quick good lunch
Vicky Nguyen
Most popular items
Signature Japanese ramen and rice bowls praised by diners
Tonkotsu Ramen
Onsen Tonkotsu Ramen (the original, which I loved for its rich, aromatic pork broth)
Mimmin Supercute Spicy Tonkotsu Ramen
This time, I tried the Spicy Tonkotsu Ramen for $19.50, and I highly recommend it.
Mimmin Supercute Katsu Curry
The katsu curry was very flavourful without being too spicy, and the pork was crispy.
Caitlin C Unagi Don
The unagi don was everything I remembered , rich, buttery eel coated on beautifully caramelised glaze.
edelicious blog
Before you head over
Practical tips on timing, ordering, and seating for your visit
Arrive Early for Peak Dinner
The cozy alley-style dining room has limited seating and can develop a line by 6:30 PM, though high table turnover keeps wait times manageable.
Use QR Code for Speedy Lunch
Order via phone QR code or directly at the counter; freshly prepared ramen bowls typically arrive within two to five minutes.
Opt for Solo Counter Seating
Single-diner counter bar benches make solo dining seamless and comfortable if visiting during busy CBD rush hours.
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