AD&D 1e Monster Manual (by rarity, all types) (d100)

d100	Result	Roll On
1-40	Common	Roll on "Common"
41-50	Common or Uncommon	Roll on "Common" or Roll on "Uncommon"
51-70	Uncommon	Roll on "Uncommon"
71-86	Rare	Roll on "Rare"
87-92	Rare or Very Rare	Roll on "Rare" or Roll on "Very Rare"
93-100	Very Rare	Roll on "Very Rare"

Subcharts

Common (d68)

d68	Result
1	`Result`
2	Baboon
3	Black Bear
4	Giant Bombardier Beetle
5	Giant Boring Beetle
6	Giant Fire Beetle
7	Giant Stag Beetle
8	Giant Water Beetle
9	Wild Boar
10	Warthog
11	Bull
12	Wild Camel
13	Wild Cattle
14	Giant Centipede
15	Crocodile
16	Demon, Type I (Vrock)
17	Demon, Type II (Hezrou)
18	Lemure
19	Anatosaurus
20	Apatosaurus
21	Camarasaurus
22	Dinichtys
23	Diplodocus
24	Iguanadon
25	Lambosaurus
26	Monaclonius
27	Pentaceratops
28	Plateosaurus
29	Stegosaurus
30	Mule
31	Ogre
32	Plesiosaurus
33	Styracosaurus
34	Pteranodon
35	Triceratops
36	Wild Dog
37	Dwarf
38	Asian Elephant
39	African Elephant
40	Flightless Bird
41	Hill Giant
42	Herd Animal
43	Draft Horse
44	Hyena
45	Jackal
46	Larva
47	Werewolf
48	Mammoth
49	Mastodon
50	Bandit
51	Merchant
52	Orc
53	Sting Ray
54	Giant Rat
55	Rhinoceros
56	Woolly Rhinoceros
57	Giant Sea Horse
58	Shrieker
59	Shark
60	Huge Spider
61	Large Spider
62	Giant Water Spider
63	Stag
64	Strangle Weed
65	Giant Toad
66	Troglodyte
67	Whale
68	Wolf

Uncommon (d109)

d109	Result
1	`Result`
2	Axe Beak
3	Badger
4	Barracuda
5	Basilisk
6	Brown Bear
7	Cave Bear
8	Giannt Rhinoceros Beetle
9	Black Pudding
10	Buffalo
11	Bugbear
12	Giant Boar
13	Carrion Crawler
14	Cockatrice
15	Giant Crayfish
16	Demon, Type III (Glabrezu)
17	Demon, Type IV (Nalfeshnee)
18	Barbed Devil
19	Bone Devil
20	Erinyes
21	Horned Devil
22	Ice Devil
23	Ankylosaurus
24	Antrademus
25	Brachiosaurus
26	Archelon Ischyras
27	Ceratosaurus
28	Gorgosaurus
29	Elasmosaurus
30	Mosasaurus
31	Megalosaurus
32	Paleoscincus
33	Teratosaurus
34	Tyrannosaurus Rex
35	Dolphin
36	War Dog
37	Black Dragon
38	Brass Dragon
39	Copper Dragon
40	White Dragon
41	Giant Eel
42	Elf
43	Giant Frog
44	Gargoyle
45	Ghoul
46	Fire Giant
47	Stone Giant
48	Gnoll
49	Gelatinous Cube
50	Goblin
51	Griffon
52	Hobgoblin
53	Hippopotamus
54	Heavy Horse
55	Otyugh
56	Piercer
57	Stirge
58	Light Horse
59	Medium Horse
60	Pony
61	Wild Horse
62	Hydra
63	Jaguar
64	Kobold
65	Lamprey
66	Giant Leech
67	Giant Skunk
68	Giant Slug
69	Giant Constrictor Snake
70	Giant Poisonous Snake
71	Giant Sea Snake
72	Giant Spider
73	Su-Monster
74	Leprechaun
75	Leopard
76	Giant Lizard
77	Subterranean Lizard
78	Lion
79	Mountain Lion
80	Lurker Above
81	Wererat
82	Manticore
83	Masher
84	Buccaneer
85	Pilgrim
86	Merman
87	Yellow Mold
88	Water Naga
89	Ochre Jelly
90	Giant Porcupine
91	Giant Portugeuse Man-o-war
92	Manta Ray
93	Rust Monster
94	Sahuagin
95	Satyr
96	Giant Scorpion
97	Sea Hag
98	Sea Lion
99	Tiger
100	Titanothere
101	Giant Poisonous Toad
102	Troll
103	Giant Sea Turtle
104	Giant Snapping Turtle
105	Wight
106	Will-o-the-wisp
107	Wolverine
108	Wraith
109	Wyvern

Rare (d106)

d106	Result
1	`Result`
2	Ankheg
3	Giant Ant
4	Carnivorous Ape
5	Balucitherium
6	Blink Dog
7	Brownie
8	Centaur
9	Cerebral Parasite
10	Chimera
11	Spotted Lion
12	Lizard Man
13	Locathan
14	Werebear
15	Wereboar
16	Blue Dragon
17	Manes
18	Succubus
19	Demon, Type V (Marilith)
20	Demon, Type VI (Balor)
21	Pit Fiend
22	Bronze Dragon
23	Green Dragon
24	Red Dragon
25	Electric Eel
26	Giant Eagle
27	Floating eye
28	Giant Poisonous Frog
29	Violet Fungi
30	Giant Gar
31	Gas Spore
32	Ghast
33	Cloud Giant
34	Frost Giant
35	Storm Giant
36	Gnome
37	Gorgon
38	Gray Ooze
39	Green Slime
40	Halfling
41	Harpy
42	Hippocampus
43	Purple Worm
44	Giant Ram
45	Fungi Ray
46	Roc
47	Rot Grub
48	Roper
49	Hippogriff
50	Irish Deer
51	Jackalwere
52	Lammasu
53	Giant Lamprey
54	Leucrotta
55	Minotaur Lizard
56	Shambling Mound
57	Shedu
58	Giant Shark
59	Giant Lynx
60	Medusa
61	Giant Pike
62	Berserker
63	Caveman
64	Dervish
65	Mindflayer
66	Mimic
67	Minotaur
68	Mummy
69	Spirit Naga
70	Neo-Otyugh
71	Nixie
72	Giant Octopus
73	Giant Otter
74	Giant Owl
75	Owlbear
76	Peryton
77	Salamander
78	Shadow
79	Skeleton
80	Giant Spitting Snake
81	Slithering Tracker
82	Spectre
83	Criosphinx
84	Gynosphinx
85	Hieracosphinx
86	Phase Spider
87	Sprite
88	Giant Stag
89	Giant Squid
90	Thought Eater
91	Sabre Tooth Tiger
92	Giant Tick
93	Trapper
94	Giant Ice Toad
95	Terant
96	Triton
97	Umber Hulk
98	Unicorn
99	Vampire
100	Giant Wasp
101	Giant Weasel
102	Wind Walker
103	Dire Wolf
104	Warg Dire Wolf
105	Giant Wolverine
106	Zombie

Very Rare (d76)

d76	Result
1	`Result`
2	Aerial Servant
3	Ape (Gorilla)
4	Giant Beaver
5	Beholder
6	Brain Mole
7	Bulette
8	Catoblepas
9	Couatl
10	Demogorgon
11	Homunculus
12	Ghost
13	Clay Golem
14	Flesh Golem
15	Iron Golem
16-17	Stone Golem
18	Giant Killer Frog
19	Dragon Turtle
20	Dryad
21	Ear Seekers
22	Weed Eel
23	Juiblex
24	Eye of the Deep
25	Orcus
26	Yeenoghu
27	Asmodeus
28	Baalzebul
29	Dispater
30	Geryon
31	Displacer Beast
32	Djinni
33	Doppelganger
34	Chromatic Dragon
35	Gold Dragon
36	Platinum Dragon
37	Dragonne
38	Silver Dragon
39	Efreeti
40	Air Elemental
41	Earth Elemental
42	Water Elemental
43	Fire Elemental
44	Ettin
45	Groaning Spirit
46	WeretigerMorkoth
47	Brown Mold
48	Guardian Naga
49	Night Hag
50	Nightmare
51	Nymph
52	Ogre Mage
53	Pegasus
54	Pixie
55	Psuedo-dragon
56	Hell Hound
57	Giant Hyena
58	Imp
59	Intellect Devourer
60	Invisible Stalker
61	Ixitxachitl
62	Ki-Rin
63	Lama
64	Lich
65	Fire Lizard
66	Quasit
67	Rakshasa
68	Remorhaz
69	Giant Amphisbaena Snake
70	Androsphinx
71	Sylph
72	Titan
73	Water Weird
74	Winter Wolf
75	Xorn
76	Yeti