The squad includes five PNG-based athletes and New Zealand-based 15-year-old Letisha Pukaikia.
Support from the PNG Olympic Committee has made possible the inclusion of USA-based athletes, including Rellie Kaputin, Theo Piniau, Adrine Monagi, Peniel Richard and Poro Gahekave.
The championships will run from July 7-9.
Secretary of Athletics PNG, Philip Rehder, said only the very best of the up and coming junior athletes have been included due to funding constraints.
