Tonic is a cocktail bar in Grassmarket, Edinburgh. Rated 4.5 stars from 789 Google reviews. Known for inventive cocktail menu and attentive, friendly service. Best for groups of friends and cocktail enthusiasts. Price range: €€.

Rankings updated May 2026

Tonic
Owner photo · via Google Business Profile

Tonic

Cocktail bar€€
4.5(789 reviews)
United Kingdom

Across 787 Google reviews, 90% gave four or five stars.

Back to Grassmarket

Quick Verdict

Tonic delivers inventive cocktails, attentive service, and live music in a cosy-yet-trendy Grassmarket setting that works equally well for couples, groups, and solo drinkers.

Book if...

You want inventive cocktails, live music, and staff who genuinely know their craft in a cosy-yet-energetic Grassmarket setting.

Best for:
Groups of friendsCocktail enthusiastsTouristsNight out with live musicDog owners

About Tonic

Tonic is a Grassmarket institution that has earned its reputation as one of Edinburgh's most reliable cocktail destinations. With 543 five-star reviews out of 778, the bar demonstrates exceptional consistency across its core offerings: inventive cocktails with a creative menu (including build-your-own margaritas), a carefully curated wine and beer selection, and live music performances that anchor the evening experience. Staff are repeatedly cited for attentiveness and knowledge—from personalised drink recommendations to going above and beyond for group bookings. The venue itself balances casual warmth with upscale polish: cosy and romantic enough for couples, trendy and energetic enough for groups, with outdoor seating adding flexibility. Dogs are welcome, free Wi-Fi and phone charging are available, and reservations are accepted. Prices are noted as reasonable for the calibre of cocktails served. The atmosphere builds naturally as the evening progresses, with live performers adding character without overwhelming conversation earlier in the night.

Tonic has a dual personality — intimate and romantic enough for a quiet dinner, with live music meaning evenings can take on a different energy entirely.

What Stands Out

Inventive cocktail menu

Reviews highlight a 'creative' menu with 'perfect options' and build-your-own margaritas; staff are consistently praised for knowledgeable recommendations.

Attentive, friendly service

Multiple 5-star reviews cite staff going 'above and beyond', being 'knowledgeable and attentive', and making special touches for group bookings and special occasions.

Live music and atmosphere

Live performances and singers are mentioned across reviews as enhancing the evening; the venue balances energy with conversation-friendly volume levels.

In Their Own Words

Review highlights surfaced by Google, in the language they were written

Practical Information

Opening Hours

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Contact

34A N Castle St, Edinburgh EH2 3BN, United Kingdom

+44 131 225 6431Visit WebsiteView Menu

Common Questions

How consistently good is Tonic?

Across 787 Google reviews, 90% of visitors gave four or five stars — placing Tonic among Grassmarket's most reliably rated cocktail bars.

Is Tonic good for a date night?

Yes — Tonic is rated as a Romantic setting by its regulars on Google, with a strong wine list and cocktail programme. Reservations are recommended, particularly for evenings.

Do you need to book Tonic in advance?

Booking ahead is recommended for meals — Tonic is a popular choice in Grassmarket and tends to fill quickly, particularly at weekends.

Does Tonic have outdoor seating?

Yes — Tonic offers outdoor seating, which pairs well with its romantic atmosphere. Outdoor tables are popular during warmer months so arriving early or booking ahead helps.

Frequently Asked Questions about Tonic

Yes—the bar is popular with groups and has a lively, energetic atmosphere enhanced by live music. Staff excel at group bookings and making special occasions memorable. Reservations are accepted.

Highly inventive and well-executed. The menu is creative with options like build-your-own margaritas. Staff are knowledgeable and offer personalised recommendations. Prices are reasonable for the quality.

Yes, dogs are allowed at Tonic, making it a pet-friendly option in the Grassmarket.

Yes, Tonic regularly features live performances and singers, adding to the vibrant atmosphere throughout the evening.

Tonic accepts reservations, which is recommended for groups or peak times, especially if you want to secure a table for a specific duration.

The bar is lively and can get busy, but reviewers note the music is at a respectable volume that allows conversation, especially earlier in the evening.

How We Rank Venues

Rankings are recalculated monthly from live Google Business Profile data. Our Hot Score weighs review velocity (new text reviews in 90 days), recency (how fresh), baseline rating, and Google Business Profile completeness. No editorial picks, no paid placements — just what the data says this month.

How our monthly rankings work