A 17-year-old boy has been charged with attempted murder after an alleged stabbing in the Brisbane suburb of Acacia Ridge.

Police allege two males had an altercation outside a Gregory St address at 2.30pm on Friday, before the 17-year-old brought out a knife and stabbed a 19-year-old man multiple times.

The 19-year-old was taken to Princess Alexandra Hospital with life-threatening injuries.

The accused has been charged with one count each of attempted murder, threatening violence, and possession of a knife in a public space.

He is set to face Brisbane Childrens Court on Saturday.

-AAP