Mariano Noriel (March 16, 1864 - January 27, 1915) was a Filipino general who fought during the Philippine Revolution and the Philippine–American War.

[2] Noriel was the president of the Council of War that tried the Bonifacio brothers (Andres and Procopio) in Naik and later in Maragondon in May 1897.

The commutation, however, was later withdrawn due to strong pressure from senior army officers and prominent citizens, including General Pio del Pilar and Noriel himself who believed that the two brothers, if allowed to live, would endanger the revolution.

The withdrawal of the commutation order was construed by Noriel, who was also in charge of the prisoners, as a go signal for the execution of the sentence, and so he had the two brothers shot to death a squad of soldiers under Major Lazaro Macapagal on May 10, 1897.

Aguinaldo, in the book A Second Look at America, which he co-authored with Vicente Albano Pacis, claims that his withdrawal of the commutation order did not mean immediate implementation of the death verdict, that Noriel had misconstrued this and acted hastily.