welcome Affiliated with prestigious co-partner law firms from all around the world we are prominent international full-service law firm based in Istanbul and Paris with more than 100 years of experience Contact now DAYIOĞLU DIFFERENCE Affiliated with prestigious co-partner law firms from all around the world we are prominent international full-service law firm based in Istanbul and Paris with more than 100 years of experience Contact Now


ADR experts, accredited arbitrators and mediators from all over the world, from Africa to America, from Asia to Europe, are now closer to you with their vast knowledge and experience.


Leading in contributing to jurisprudence, while discovering the unchartered legal areas our partners offer unprecedented solutions to legal problems. 


No matter where in the world, we are with you, pick a country and we will bring the legal solution to you.

Your Case. Our Cause.

Continuing the tradition of attorneyship for generations and of which I am the 7th generation member, Dayıoğlu continues to present its experience of more than 100 years, at home and abroad, to the access of its domestic and foreign clients.

Legal Awards Winner 2022

The 2022 Lawyer Monthly Legal Awards Winners Edition is now available. The Lawyer Monthly Legal Awards recognise the achievements of law firms and individuals who have delivered exceptional results for their clients over the past 12 months. Lawyers and law firms continue to play a crucial role in guiding and...
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Aviation Law

We represent airlines, which are among the main representatives of the aviation sector, financial institutions and organizations and companies that provide goods and services working in the aviation sector before state courts, international organizations and arbitration proceedings.

Construction Law

We represent domestic and foreign construction companies, employers, property owners, real estate partners, contractors, subcontractors, project developers and project owners before government institutions, courts, domestic arbitration and international arbitration proceedings.

Natural Resources, Energy & Environmental Law

We represent important players of the energy sector such as oil and gas companies, mining companies, electricity infrastructure service companies, financial institutions and organizations insurance companies, equipment suppliers, contractors and subcontractors, operation and maintenance service providers working in connection with the energy sector before state courts, international institutions and arbitration proceedings.

Banking & Finance Law

We represent commercial banks, investment banks, financial institutions, leasing companies, factoring companies, brokerage houses, asset management companies, insurance and reinsurance companies, borrowers, financial leasing and factoring lessors before state courts and international institutions.

Corporate Law

We provide litigation and regular consultancy services to trade and investment companies with partners from all nationalities operating in different sectors, companies subject to special permits, holdings and consultancy services to individuals who want to establish a company.

Competition Law

We represent Turkish and foreign companies, cooperations, investment banks and individuals before the Competition Authority, state courts, international institutions and arbitration proceedings.

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What we believe in

Ones That We Follow

  • While practicing our profession; we are not subjects to anyone, not to clients, not judges and especially not to the government. We do not allege that there are persons inferior to us. However we do not recognize any superiors. Our most junior member is no different than the most senior or the most recognized. Lawyers did not use any slaves, however they did not have any masters.

  • The law seems like a sort of maze through which a client must be led to safety, a collection of reefs, rocks and underwater hazards through which he or she must be piloted.

    Sir James Mortimer
  • True, we [lawyers] build no bridges. We raise no towers. We construct no engines. We paint no pictures—unless as amateurs for our own principal amusement. There is little of all that we do which the eye of man can see. But we smooth out difficulties; we relieve stress; we correct mistakes; we take up other men’s burdens and by our efforts we make possible the peaceful life of men in a peaceful state.

    John W. Davis
  • Delay in justice is injustice.

    Walter Savage Landor

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