Regions of Papua New Guinea
- Mageh River
- Magedzetzu
- Mage
- Magdalene River
- Magazain
- Magawuru Island
- Magar Plantation
- Magap River
- Magapita
- Magani Hill
- Magamizuha
- Magam
- Magleri
- Magahiyufa
- Magafol Creek
- Magadu
- Magabu Island
- Magabara
- Mafuia
- Mafuara
- Mafor Creek
- Mafoka
- Maera
- Mae Creek
- Madungai
- Madu Ada Range
- Madrere
- Madiri
- Madilogo
- Madikora
- Madidua River
- Madidua
- Madi Creek
- Madi Creek
- Madehas Island
- Madau Island
- Madau
- Madan Island
- Madang Province
- Madang Harbour
- Madang District
- Madang
- Madame
- Madaduo
- Mada Creek
- Madabaira
- Macrossan Island
- Maclay Coast
- Maclatchie Point
- Maclaren Harbour
- Mount Mack
- Macin River
- Machendi
- MacGregor Peaks
- MacGregor Junction
- Mount Macgregor
- MacGillivray Range
- Mac Cullock Point
- Mabuwa
- Mabulga
- Mabul
- Mabua Plantation
- Mabuanda
- Mabua Island
- Mabua
- Mabo Creek
- Mabli River
- Mabiri Reef
- Cape Mabiri
- Mabirei
- Mount Mabion
- Mabiaka Creek
- Mabet
- Mabeluku
- Mabel River
- Mabam River
- Mabaduan Hill
- Mabaduan
- Maata
- Ma’akunga River
- Maaebli Creek
- Ok Ma
- Lyra Reef
- Lyingenge River
- Lyakote
- Luwuni Creek
- Luwaite Villages
- Luvish Plantation
- Luther Anchorage
- Lutap River
- Lutaaya Falls
- Lusinda Mission
- Lus Creek
- Luschan Harbour
- Lusancay Islands and Reefs
- Cape Lupos
- Lupon
- Lupoi Creek
- Lupai
- Lupabe
- Luonglil
- Luoi-Tua Island
- Lunungu
- Lunua
- Lunlun Creek
- Lungzim
- Lungatan Plantation
- Lungalunga
- Lundret
- Lunaman Hill
- Luna Creek
- Lumulu Creek
- Lumufalele
- Lumis River
- Lumis
- Lumike Island
- Lumi District
- Lumi
- Lumburu Point
- Lumburu
- Lumboila Island
- Lumbi Quarry
- Lumbi
- Lumbaip
- Lulu River
- Lulu Creek
- Luluapo
- Luluabo
- Lulima Island
- Lulik River
- Mount Luligi
- Lula River
- Lulakevi
- Lukus Island
- Lukus Creek
- Lukus
- Lukua
- Lukluk
- Luise Harbour
- Lui
- Luhan River
- Lugos River
- Lugos Mission
- Lugitama
- Lugei
- Lugalup
- Lufuai River
- Luf Island
- Lufikave
- Lufa
- Lufa
- Lue Passage
- Lue Island
- Cape Ludtke
- Ludesa Mission
- Ludak
- Luburua Plantation
- Luburua
- Lubun
- Lubum River
- Luba Plantation
- Luas Creek
- Luard Islands
- Luap Creek
- Wok Luap
- Luanke
- Luan Bay
- Lualu
- Lowo
- Lowland Agricultural Experimental Station
- Lower Baiune Power Station
- Lowat Poro Mission
- Lowat Kang
- Lowa River
- Lowan
- Lowakai
- Lowaia
- Lowai
- Lowa
- Lovo River
- Lovera
- Lovela
- Lova River
- Loumtas Rock
- Lou Island
- Loubip
- Lou
- Lotuava
- Lotsar River
- Loto Reef
- Mount Lotomgan
- Mount Lotili
- Lothian Shoals
- Lote Mission
- Losuia District
- Losuia
- Lossu Plantation
- Lossu Number 2
- Lossu Number 1
- Lossuk River