GFDL:List of maria on the Moon

This is a list of maria (singular mare) on the Moon.

It also includes the one oceanus and the features known by the names lacus, palus and sinus.

Maria and Oceanus

Lunar Maria
Latin Name	English Name	Lat.	Long.	Diameter
Mare Anguis	Serpent Sea	22.6° N	67.7° E	150 km
Mare Australe	Southern Sea	38.9° S	93.0° E	603 km
Mare Cognitum	Sea That Has Become Known or Known Sea	10.0° S	23.1° W	376 km
Mare Crisium	Sea of Crises	17.0° N	59.1° E	418 km
Mare Fecunditatis	Sea of Fecundity	7.8° S	51.3° E	909 km
Mare Frigoris	Sea of Cold	56.0° N	1.4° E	1596 km
Mare Humboldtianum	Sea of Alexander von Humboldt	56.8° N	81.5° E	273 km
Mare Humorum	Sea of Moisture	24.4° S	38.6° W	389 km
Mare Imbrium	Sea of Showers	32.8° N	15.6° W	1123 km
Mare Ingenii	Sea of Cleverness	33.7° S	163.5° E	318 km
Mare Insularum	Sea of Islands	7.5° N	30.9° W	513 km
Mare Marginis	Sea of the Edge	13.3° N	86.1° E	420 km
Mare Moscoviense	Sea of Muscovy	27.3° N	147.9° E	277 km
Mare Nectaris	Sea of Nectar	15.2° S	35.5° E	333 km
Mare Nubium	Sea of Clouds	21.3° S	16.6° W	715 km
Mare Orientale	Eastern Sea	19.4° S	92.8° W	327 km
Mare Serenitatis	Sea of Serenity	28.0° N	17.5° E	707 km
Mare Smythii	Sea of William Henry Smyth	1.3° N	87.5° E	373 km
Mare Spumans	Foaming Sea	1.1° N	65.1° E	139 km
Mare Tranquillitatis	Sea of Tranquility	8.5° N	31.4° E	873 km
Mare Undarum	Sea of Waves	6.8° N	68.4° E	243 km
Mare Vaporum	Sea of Vapors	13.3° N	3.6° E	245 km
Oceanus Procellarum	Ocean of Storms	18.4° N	57.4° W	2568 km

There was also a region on the Lunar farside that was briefly misidentified as a mare and named Mare Desiderii (Sea of Dreams). It is no longer recognized.

Lacus

A related set of features are the Lunar lacus (singular lacus, Latin for "lake"), which are smaller basaltic plains of similar origin:

Lunar Lacus
Latin Name	English Name	Lat.	Long.	Diameter
Lacus Aestatis	Lake of Summer	15.0° S	69.0° W	90 km
Lacus Autumni	Lake of Autumn	9.9° S	83.9° W	183 km
Lacus Bonitatis	Lake of Goodness	23.2° N	43.7° E	92 km
Lacus Doloris	Lake of Sorrow	17.1° N	9.0° E	110 km
Lacus Excellentiae	Lake of Excellence	35.4° S	44.0° W	184 km
Lacus Felicitatis	Lake of Happiness	19.0° N	5.0° E	90 km
Lacus Gaudii	Lake of Joy	16.2° N	12.6° E	113 km
Lacus Hiemalis	Wintry Lake	15.0° N	14.0° E	50 km
Lacus Lenitatis	Lake of Softness	14.0° N	12.0° E	80 km
Lacus Luxuriae	Lake of Luxury	19.0° N	176.0° E	50 km
Lacus Mortis	Lake of Death	45.0° N	27.2° E	151 km
Lacus Oblivionis	Lake of Forgetfulness	21.0° S	168.0° W	50 km
Lacus Odii	Lake of Hatred	19.0° N	7.0° E	70 km
Lacus Perseverantiae	Lake of Perseverance	8.0° N	62.0° E	70 km
Lacus Solitudinis	Lake of Solitude	27.8° S	104.3° E	139 km
Lacus Somniorum	Lake of Dreams	38.0° N	29.2° E	384 km
Lacus Spei	Lake of Hope	43.0° N	65.0° E	80 km
Lacus Temporis	Lake of Time	45.9° N	58.4° E	117 km
Lacus Timoris	Lake of Fear	38.8° S	27.3° W	117 km
Lacus Veris	Lake of Spring	16.5° S	86.1° W	396 km

Sinus and Paludes

A related set of features are the sinus (singular sinus, Latin for "bay") and paludes (singular palus, Latin for "marsh"):

Lunar Sinus and Paludes
Latin Name	English Name	Lat.	Long.	Diameter
Palus Epidemiarum	Marsh of Epidemics	32.0° S	28.2° W	286 km
Palus Putredinis	Marsh of Rot	26.5° N	0.4° E	161 km
Palus Somni	Marsh of Sleep	14.1° N	45.0° E	143 km
Sinus Aestuum	Seething Bay	10.9° N	8.8° W	290 km
Sinus Amoris	Bay of Love	18.1° N	39.1° E	130 km
Sinus Asperitatis	Bay of Roughness	3.8° S	27.4° E	206 km
Sinus Concordiae	Bay of Harmony	10.8° N	43.2° E	142 km
Sinus Fidei	Bay of Trust	18.0° N	2.0° E	70 km
Sinus Honoris	Bay of Honor	11.7° N	18.1° E	109 km
Sinus Iridum	Bay of Rainbows	44.1° N	31.5° W	236 km
Sinus Lunicus	Lunik Bay	31.8° N	1.4° W	126 km
Sinus Medii	Bay of the center	2.4° N	1.7° E	335 km
Sinus Roris	Bay of Dew	54.0° N	56.6° W	202 km
Sinus Successus	Bay of Success	0.9° N	59.0° E	132 km

Some sources also list a Palus Nebularum ("Marsh of Clouds") at 38.0° N, 1.0° E. However the designation for this feature has not been officially recognized by the IAU.