The chief adviser of Bangladesh (Bengali: বাংলাদেশের প্রধান উপদেষ্টা, romanized: Bāṅlādēśēr Prôdhān Upôdēśtā), officially Chief Adviser of the People's Republic of Bangladesh (Bengali: গণপ্রজাতন্ত্রী বাংলাদেশের প্রধান উপদেষ্টা, romanized: Gôṇôprôjātôntrī Bāṅlādēśēr Prôdhān Upôdēśtā), is the chief executive of the caretaker and the interim government of Bangladesh, who serves as the head of government during the transition period between one elected government and another.

The Bangladesh Nationalist Party had some difficult appointing a Chief adviser to the caretaker government which led to the 2006–08 Bangladeshi political crisis.

During the crisis, the military-backed caretaker government was led by Chief Adviser Fakhruddin Ahmed.

Following the High Court's verdict, several sections of the Fifteenth Amendment were scrapped on 17 December 2024, restoring the caretaker system.

[8][9][10] The office was restored in 2024 under the extra-constitutional setup of an interim government, following the resignation of Prime Minister Sheikh Hasina.