Regions of Papua New Guinea
- Auga River
- Augaramuba Point
- Augana
- Auena Point
- Audrusi Point
- Audi
- Au Bay
- Auang
- Aua Island
- Auagum Range
- Au
- Au
- Au
- Atzera Range
- Atwara
- Atuo
- Atu Lagoon
- Atuia Bay
- Atui
- Atu
- Atsuvatapi
- Atsunas
- Atsuk
- Atob River
- Ato
- Ato
- Mount Atlee-Hunt
- Atle
- Atlamau
- Atkamba Mission
- Atitau
- Atit
- Atilem River
- Atilem Creek
- Atiera
- Atiapi
- Aterum
- Atemtaman
- Atem River
- Atemkismin
- Atemin
- Atemble Mission
- Atemble
- Atembip
- Atembip
- Ateltem River
- Atebin
- Atbit
- Atbine
- Atbalmin
- Atare
- Atara River
- Atapaura
- Atapao
- Atangato
- Atamo
- Atalum
- Ataliklikun Bay
- Atakara
- Atabu
- Ataata Creek
- Ata
- Asuwint
- Asuramba Plantation
- Asuramba
- Asumawi
- Asuku Creek
- Asui
- Asua Creek
- Astrolabe Range
- Astrolabe Bay
- Assalau
- Mount Asowa
- Asor
- Asolani
- Asoatutuma
- Aslingpun
- Askam
- Asiwa River
- Asit
- Asisi
- Asisi
- Asirangka
- Asipuia
- Asiopoana
- Asinni River
- Asini
- Asimba River
- Asimba
- Asiling
- Asilimapua
- Asilima Bay
- Atsinima
- Asikouei
- Asikan
- Asier
- Asier
- Asiam
- Asepsep
- Asel Creek
- Aseki
- Asau Camp
- Asau
- Asatupi
- Asasapas
- Asas
- Asarozuha
- Asaro River
- Asariyufa Number 3
- Asariyufa Number 2
- Asariyufa Number 1
- Asariyufa
- Asaramio
- Asara
- Asapoi River
- Asapi
- Asapa
- Asanga River
- Asanga Number 2
- Asangamut
- Asang
- Asanakor
- Asama
- Asam
- Asaloka
- Asalingi Plantation
- Asalibi
- Asaingida Lagoon
- Arymei
- Aruwini
- Aruway
- Arutu River
- Aruruhu
- Arupon Plantation
- Arupi
- Arupala Creek
- Aruoa Bay
- Arunggam
- Arung Bay
- Arung
- Aruna Reef
- Arumu River
- Arumbum
- Aruma River
- Arumanda
- Arumabai
- Aruma Apa Range
- Arulai
- Arufi Mission
- Arufa
- Aru Creek
- Lake Aru Aru
- Arua River
- Arua’idu
- Aru
- Aru
- Artagard River
- Arrakus Creek
- Arowe Island
- Arowak Island
- Arovaraisa
- Arou
- Arorata
- Arora
- Arora
- Arop Villages
- Aropokina Landing
- Aropokina
- Aropa Rvier
- Arona Number 2
- Arona Number 1
- Aronaimutu Island
- Arona
- Aromot Island
- Aromei
- Aromaitsi
- Arokara Government Rest House
- Arokara
- Arohemi
- Aroaro
- Aroa River
- Aroa Plantation
- Aroana Plantation
- Aroa
- Aro
- Aro
- Arni Reef
- Arndt Point
- Amy Range
- Armit Range
- Armi Creek
- Arl River
- Cape Arkona
- Arkim River
- Arivai Creek
- Aritapu
- Aris Island
- Arisili
- Arip Valley
- Aripau Point