Lazar Mijušković (Serbian Cyrillic: Лазар Мијушковић; 24 December 1867 – 29 September 1936) was a Montenegrin politician and diplomat.

Mijušković was born on 24 December 1867 in the village of Povija in Pješivci, in the Principality of Montenegro.

He performed the duty of Minister of Finance in Government of Principality of Montenegro from June 1903 to December 1905.

[1][2] He also served two terms as the President of the Ministerial Council (Prime Minister of Montenegro).

Mijušković was leader and one of the founders of the True People's Party, founded in 1907.