The fourth cabinet of Ion I. C. Brătianu was the government of Romania from 11 December 1916 to 28 January 1918.

The ministers of the cabinet were as follows:^[1]

• President of the Council of Ministers:

• Ion I. C. Brătianu (11 December 1916 - 28 January 1918)

• Vice President of the Council of Ministers:

• Take Ionescu (11 December 1916 - 28 January 1918)

• Minister of the Interior:

• Alexandru Constantinescu (11 December 1916 - 28 January 1918)

• Minister of Foreign Affairs:

• Ion I. C. Brătianu (11 December 1916 - 28 January 1918)

• Minister of Finance:

• Victor Antonescu (11 December 1916 - 10 July 1917)
• Nicolae Titulescu (10 July 1917 - 28 January 1918)

• Minister of Justice:

• Mihail G. Cantacuzino (11 December 1916 - 28 January 1918)

• Minister of Religious Affairs and Public Instruction:

• Ion Gh. Duca (11 December 1916 - 28 January 1918)

• Minister of War:

• Vintilă I. C. Brătianu (11 December 1916 - 10 July 1917)
• (interim) Vintilă I. C. Brătianu (10 - 20 July 1917)
• Gen. Constantin Iancovescu (20 July 1917 - 28 January 1918)

• Minister of War Materiel:^[2]

• Vintilă I. C. Brătianu (19 July 1917 - 28 January 1918)

• Minister of Public Works:

• Dimitrie Greceanu (11 December 1916 - 28 January 1918)

• Minister of Industry and Commerce:

• Constantin Istrati (11 December 1916 - 10 July 1917)
• Barbu Delavrancea (10 July 1917 - 28 January 1918)

• Minister of Agriculture and Property:

• George G. Mârzescu (11 December 1916 - 28 January 1918)

• Ministers without portfolio:

• Mihail Pherekyde (11 December 1916 - 28 January 1918)
• Emil Costinescu (11 December 1916 - 28 January 1918)
• Take Ionescu (11 December 1916 - 10 July 1917)
• Vintilă I. C. Brătianu (10 - 19 July 1917)