+66 (0) 2 123 4567 hello@dukelanguage.com Sukhumvit, Bangkok
ก

Above the Mark  ·  Above the Rest

Master Thai

Certified native-speaker instructors guide you from beginner script to advanced conversation — morning, evening & weekend classes in the heart of Bangkok.

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5,000+Students
3Languages
98%Pass Rate
Thailand
Thai
ภาษาไทย
Now Enrolling
E

IELTS  ·  TOEFL  ·  Business English

Master English

Achieve the IELTS score you need. Expert coaches have helped over 5,000 students pass with flying colours — flexible schedules, proven results.

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5,000+Students
3Languages
98%Pass Rate
United Kingdom
English
IELTS · TOEFL
Now Enrolling
语

HSK 1 – 6  ·  Business Mandarin

Master Mandarin

China's language of opportunity. HSK-aligned programmes with native teachers — from tones and characters to boardroom-level business Mandarin.

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5,000+Students
3Languages
98%Pass Rate
China
Mandarin
普通话
Now Enrolling

Fun Is Our Serious Business

Why Choose Us

Why Duke Language School?

Six reasons our students keep coming back — and bringing friends with them.

Practical

Real-World Lessons

Students practise language they can actually use outside the classroom — markets, offices, real life.

Engaging

Teachers With Personality

Clear explanations, lively classes, and a learning atmosphere that feels warm, not stiff.

In-House

Original Duke Materials

Structured textbooks, audio, and learning resources created in-house for real measurable progress.

Flexible

Flexible Learning Options

Daytime, evening, weekend, private, online and corporate — pick the rhythm that fits your life.

Global

International Community

Students from around the world study together in the heart of Bangkok — friendships included.

ED Visa

Visa Support for Thai Learners

For eligible students, Duke can support the ED Visa process through structured Thai courses.

Courses & Pricing

Choose Your Course

Three languages · transparent pricing · proven results.

All Courses
Thai Language

Thai for Beginners

Build a confident spoken Thai foundation. Greetings, tones, vocabulary and your first real conversations.

Starting ฿8,000 / course
8 Weeks Beginner
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English

Business English

Master professional English for the workplace — presentations, emails, negotiations and IELTS / TOEFL prep paths.

Starting ฿9,900 / course
10 Weeks Int / Adv
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Mandarin

Mandarin HSK Prep

Comprehensive HSK 1–4 path featuring reading, writing and listening across all proficiency levels.

Starting ฿9,900 / course
12 Weeks All Levels
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Student Reviews

What Our Students Say

Real voices from real students who built fluency at Duke.

Duke Language School completely transformed my career. After completing the Business English course, I landed a communication-lead role at an international firm. The instructors are world-class.

Somchai Prasert
Business English Student
Sarah Johnson
Small Business Owner

Since enrolling, I've not only improved my workflow but experienced a significant improvement in efficiency and collaboration with my Thai colleagues. The teachers genuinely care.

My HSK 3 prep course and Thai for beginners class — both unbelievably structured and engaging. I felt ready to take real exams within months. Highly recommend Duke!

Priya Sivasubramanian
Mandarin HSK Student

As a complete beginner, I was nervous walking into a Thai class. Two months in, I'm ordering food, bargaining at markets and chatting with neighbours. Best decision I made in Bangkok.

Daniel Müller
Thai for Beginners

Duke's ED Visa support made my year-long stay in Thailand frictionless. The Thai progression was a bonus — I came for paperwork, stayed for the community.

Riku Kobayashi
ED Visa · Thai Student

The IELTS prep was rigorous and personal. My band jumped from 6.0 to 7.5 in 10 weeks. Teachers treat you like a partner in your progress, not a test number.

Aisha Tanaka
IELTS Prep · Band 7.5

Joined the corporate Mandarin class with my colleagues — six months later we closed a major China deal in their language. ROI on this course was insane.

James O'Connor
Corporate Mandarin
Stay Longer · Study Smart

ED Visa — Study in Thailand

Duke Language School is an MOE-registered institution authorised to support transition from a tourist or short-stay visa into a Thai ED Visa — perfect for a year or more committed to study.

  • Valid passport with at least 6 months remaining
  • Completed enrolment at Duke Language School
  • Recent passport-style photograph (4×6 cm)
  • Proof of funds — most start at THB 20,000
  • The Embassy will collect your home country approval
Important: ED Visa rules are subject to Thai immigration policy. Processing typically takes 3–6 weeks once you submit a complete application.
Apply for ED Visa
1

Receive Official School Documents

We send official acceptance, curriculum and MOE-verified documents required for embassy submission.

2

Apply at Thai Embassy

Submit your ED Visa application at your nearest Thai consulate or embassy in your home country.

3

Enter Thailand & Report to School

On arrival, check in at Duke within the first 7 days — we handle the immigration paperwork from there.

4

Maintain Attendance & Renew Annually

Maintain 80%+ attendance & renew up to 1 year at a time. Duke handles every 90-day report on your behalf.

FAQs

Got Questions?
We've got answers.

Everything you need to know before enrolling at Duke — from how its courses run, to embassy and teaching materials.

Ask Us Anything
  • English English · between A1–C2
  • Thai Thai · alphabet, tones & conversation
  • Chinese Chinese · Mandarin, characters & HSK
What languages can you teach at Duke?
Duke Language School specialises in three languages — English, Thai and Mandarin. Each program is taught by certified native speakers and teachers and runs at all proficiency levels, from absolute beginner through to advanced and professional levels.
Do I need any experience to start?
Not at all — most students enrol with zero prior experience. We'll quickly assess your level on day one and place you in the right group.
How many students are in each class?
Group classes are capped at 8 students to ensure everyone gets active speaking time and personal attention. Private 1-on-1 lessons are also available.
Can I try a class before committing?
Absolutely — we offer a free 30-minute trial lesson so you can meet your teacher and feel the classroom vibe before you enrol.
How long will it take me to become fluent?
Conversational fluency typically arrives within 6–12 months of consistent study (4+ hours per week). Most students hit working-proficiency by month 9.
What days and times are classes available?
Morning, afternoon, evening and weekend slots — choose what fits your schedule. Online options run in parallel with in-person classes.
Latest Articles

Tips, Guides & Language Insights

View All Posts
Thai Language
May 10, 2026 6 min read

How to Learn Thai Fast: 7 Proven Strategies for Beginners

Practical strategies and tools that have helped thousands of students push past common roadblocks.

Read Article
IELTS Prep
May 02, 2026 8 min read

IELTS Band 7+ in 3 Months: Our Complete Preparation Roadmap

Breaking down each section — Reading, Writing, Listening, Speaking — with proven techniques.

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Mandarin
Apr 28, 2026 5 min read

HSK 3 to HSK 5: What Changes and How to Bridge the Gap

The jump from intermediate Mandarin to professional-level fluency is real — but it is bridgeable.

Read Article

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