Regions of Guyana
- Mibikuri Creek
- Mibikuri
- Meyuni Island
- Meyuni Creek
- Met en Meerzorg
- Mesopotamia Creek
- Mesopotamia
- Mes Delices
- Mes Delices
- Number Twenty-nine Mervil
- Merume River
- Meritizero
- Meriparu River
- Merawai Creek
- Mepitiwau River
- Menzies Landing
- Mendel River
- Menabaru River
- Melvilles Peak
- Melville
- Melville
- Mekropai Hill
- Turtle River
- Meerzorg
- Meer Zorgen
- Meadow Bank
- McTurks Creek
- McTurk Creek
- Mc Nabb Canal
- McKenzie Rapids
- McIntyres Landing
- Mc Doom
- McDonald Blackwater River
- Mazawini River
- Mazawini Landing
- Mazaruni River
- Mazaruni Creek
- Mazanapa Creek
- Mayer Beck
- Mauru River
- Mauri River
- Maurida Mountain
- Mauridai
- Mauri Creek
- Maurasima
- Mouraniekabra Creek
- Maunama River
- Matuaparu Creek
- Matthew Creek
- Matorohana River
- Matope River
- Matope Fall
- Matincharra Creek
- Matikaiwau River
- Matepou Creek
- Mataruki River
- Matara Creek
- Matara Creek
- Maswa Creek
- Massirikaru Creek
- Massiparu Creek
- Number Seventy Massiah
- Massara
- Massara
- Massakura
- Mashiveau River
- Mashikuru River
- Mashabo River
- Masaetayourau Inlet
- Masabona
- Maryville
- Marys Hope
- Number Thirty-five Marysburg
- Mary Falls
- Number Seventy-eight Mary and Eliza
- Mary
- Marurawau River
- Marurawau River
- Marurawaunawa Village
- Marupa River
- Marupak Mountains
- Maruni Creek
- Marulla Creek
- Maruiwa River
- Marudi River
- Marudi Mountains
- Marudi Mine
- Marudi-Karawaimentau Mountains
- Marudi Creek
- Marudi Creek
- Martins Burial Ground
- Marshall Falls
- Marowa Creek
- Marowa
- Marourona River
- Maroni Creek
- Marlissa Falls
- Marlissa Creek
- Marlborough
- Markasana Creek
- Mariwa Village
- Mariwaru River
- Mariwa River
- Mariwa Creek
- Mariwa Island
- Mariwa Fall
- Maritaparu Creek
- Maritamnia River
- Marishikuru Creek
- Maripobo Pond
- Maripa-Yaund Island
- Mariparukeng River
- Muripari Creek
- Maripakuru River
- Maripakuru River
- Maripaka Creek
- Maripa Falls
- Maripabaro Creek
- Maripa
- Marionville
- Maringtuk Falls
- Marinero River
- Marina Fall
- Mari-Mari Creek
- Mari-Mari Creek
- Mari Mari Creek
- Marihi Fall
- Marienda Creek
- Marienburg
- Marie Island
- Maridawa Hill
- Maridawa Creek
- Maribunda River
- Maribaparu River
- Maribambo Creek
- Marias Pleasure
- Marias Lodge
- Marias Lodge
- Marias Delight
- Marias Delight
- Mariaparu River
- Maria Johanna
- Maria Isabella
- Maria Henrietta
- Maria Helena
- Maria Elizabeth
- Mariabo River
- Mariabanna Hill
- Maria and Wenard
- Maria Agnetta
- Maria
- Maria
- Ma Retraite
- Marepowta River
- Marehugi Fall
- Marchaitain Mountain
- Marawaha River
- Maraturia Island
- Maratina Creek
- Mararu River
- Marapaikru Creek
- Mara-Mara River
- Mara Mara River
- Maramara Landing
- Maramarakabura River
- Maramara Creek
- Maramara Creek
- Maramara Creek
- Maramarabisi Creek
- Marakura Creek
- Marakanata
- Marakai Creek
- Mara Creek
- Macouba
- Marabunta Creek
- Marabunta Creek
- Marabishi
- Marabiakru Cliffs
- Marabaka
- Mara
- Mapuru Creek
- Mapuro River
- Mapuri Mountain
- Mapruka
- Mappa Lake
- Maple Creek
- Mapituri Fall
- Mapenna River
- Maparri River
- Maparri Mountains
- Maparri River
- Maopityan Falls
- Manuwau
- Manjappo River
- Majappo Creek
- Manisakabo Creek
- Maniparu Creek
- Manilla
- Manikuru Creek
- Manikuru Canal