Dayıoğlu Hukuk Bürosu - Av. Cemal Sedat Dayıoğlu

Cemal Sedat Dayıoğlu

Managing Partner – Senior Lawyer


Cemal Sedat DAYIOĞLU was born in 1959, in Istanbul.

Having completed his primary education at Maçka Primary School and his high school studies at Terakki Foundation Private Şişli Terakki High School, Cemal Sedat DAYIOĞLU pursued a part of his graduate studies in France. He studied French Philology at Besançon University, Faculty of Literature prior to his LLB studies at Strasbourg University, Faculty of Law. Later on, he completed his LLB studies at Istanbul University Faculty of Law and he graduated from Istanbul University Faculty of Law in 1985.

Admitted to the Istanbul Bar under 14288 bar member number, Cemal Sedat DAYIOĞLU actively practices law at his own law firm, DAYIOĞLU LAW FIRM & INTERNATIONAL ADR CENTER, of which he is the managing partner, since 1986.

He provides legal consulting services in French and in English.

In 2017, having completed his Mediation Certification Course in Labour Law, Cemal Sedat DAYIOĞLU became mediator admitted to the List of Mediators of the Mediation Department of the Turkish Ministry of Justice, under 4120 mediator number. In the same year, he founded a Mediation Center. As General Accredited Mediator and Certified Employment-Law Mediator he provides efficient and speedy resolution to employment law disputes and business-related disputes.

Alongside his career, Cemal Sedat DAYIOĞLU engages in social activities. He is the founder and the Vice President of the Foundation Gülten Dayıoğlu Children’s and Young Adult Literature. He happens to be founder and member of many associations and foundations such as Toothfriendly Association, Lions Aksaray, Sisli Police Services Development and Support Association, Yeşilyurt Sports Club, Galatasaray Solidarity Foundation, Şişli Terakki Alumni Association, Istanbul University Alumni Association and Turkish Travellers Club.

 For two years he served as Board Member and Vice President of Sarıyer Sports Club. In addition, since 1999, Cemal Sedat DAYIOĞLU is member of Galatasaray Sports Club. During presidential elections in 2018, he is nominated as Full Board Member Candidate in the group of the Presidential Candidate Ali Fatinoğlu. In 2021, he is nominated as Full Board Member Candidate in the group of the Presidential Candidate Ibrahim Özdemir.

Among his hobbies there are motor sports, diving, surfing, yachting and skiing. Cemal Sedat DAYIOĞLU won the first prize in 1995 Erzurum Dedeman Alpine Competition, the first and second prize in 1976 and 1977 French Universities Giant Slalom, nineth prize in 1987 Bodrum World Surfing Championship.


Strasbourg University Faculty of Law

1985 – Istanbul University Faculty of Law

Franche-Comté University Faculty of Literature,  Department of French Language