A list of (additional and standard) Upanishads and their available translations in print
The names from Sadhale's collection and available translations are in the end.
UPANISHADS (Jithendra's list)
1 AKSHYUPANISHAD 
2 AKSHAMALIKOPANISHAD 
3 ADHARVSIROPANISHAD 
4 ADVOYATHARAKOPANISHAD 
5 ADHYATHMOPANISHAD 
6 AMRUTHANADOPANISHAD 
7 AVADHOOTHA UPANISHAD 
8 ATHMAPOOJOPANISHAD 
9 ATHMOPANISHAD 
10 ATHMABODHOPANISHAD 
11 ARUNIKOPANISHAD 
12 ASHRAMOPANISHAD 
13 ISHVASYOPANISHAD 
14 EKAKSHAROPANISHAD 
15 E[A]ITHAREYOPANISHAD 
16 KAD(TH)OPANISHAD 
17 KADARUDROPANISHAD 
18 KALISAMTHARANOPANISHAD 
19 KALAGNIRUDROPANISHAD 
20 KUNDIKOPANISHAD 
21 KRISHNOPANISHAD 
22 KENOPANISHAD 
23 KAIVALYOPANISHAD 
24 KOUSHEETHAKIBRAHMANOPANISHAD 
25 KSHURIKOPANISHAD 
26 GANAPATYOPANISHAD 
27 GARBHOPANISHAD 
28 GARUDOPANISHAD 
29 GAYATRI UPANISHAD 
30 GAYATREERAHASYOPANISHAD 
31 GOPALAPOORVATHAPINEUPANISHAD 
32 CHATHURVEDOPANISHAD 
33 CHAKSHYOOSHOPANISHAD 
34 CHANDOGYOPANISHAD 
35 JABALADARSANA UPANISHAD 
36 JABALYOOPANISHAD 
37 JABALOPANISHAD 
38 THULASYOOPANISHAD 
39 THUREEYATHEETHOPANISHAD 
40 THAITHIREEYOPANISHAD 
41 THRIPUROPANISHAD 
42 THRISHIKSHABRAHMANOPANISHAD 
43 DAKSHINAMOORTHYOPANISHAD 
44 DEVYOOPANISHAD 
45 DVOYOPANISHAD 
46 DYANABINDOPANISHAD 
47 NADABINDOOPANISHAD 
48 NARADA PARIVRAJAKOPANISHAD 
49 NARAYANOPANISHAD 
50 NIRVANAUPANISHAD 
51 NIRALAMBOPANISHAD 
52 NEELARUDROPANISHAD 
53 NRESIMHAPOORVATHAPINEUPANISHAD 
54 NRESIMHASHATCHAKROPANISHAD 
55 PANCHABRAHMOPANISHAD 
56 PARABRAHMOPANISHAD 
57 PARAMAHAMSAUPANISHAD 
58 PARAMAHAMSAPARIVRAJAKOPANISHAD 
59 PASHUPATHABRAHMOPANISHAD 
60 PAINGALOPANISHAD 

61 PRANOPANISHAD 
62 PRASHNOPANISHAD 
63 PRANAGNIHOTROPANISHAD 
64 BRAHMABINDOOPANISHAD 
65 BRAHMAVIDYA UPANISHAD 
66 BRAHMOPANISHAD 
67 BHAVANOPANISHAD 
68 BHIKSHUKOPANISHAD 
69 MANDALABRAHMANOPANISHAD 
70 MANTHRIKOPANISHAD 
71 MAHAVAKYOPANISHAD 
72 MAHOPANISHAD 
73 MANDOOKYOPANISHAD 
74 MUNDAKOPANISHAD 
75 MUD[L]GALOPANISHAD 
76 MAITHRAYANYOOPANISHAD 
77 MAITHREYIUPANISHAD 
78 YAGNAVALKYOPANISHAD 
79 YOGAKUNDULYOPANISHAD 
80 YOGACHOODAMANYOOPANISHAD 
81 YOGATHATHVA UPANISHAD 
82 YOGARAJOPANISHAD 
83 RADHOPANISHAD 
84 RAMAPOORVATHAPINYOOPANISHAD 
85 RUDRAHRUDAYOPANISHAD 
86 RUDRAKSHJAVALOPANISHAD 
87 RUDROPANISHAD 
88 LANGULOPANISHAD 
89 VAJRASOOCHIKOPANISHAD 
90 VAHVRECHOPANISHAD 
91 SHARABHOPANISHAD 
92 SHATYAYANEEYOPANISHAD 
93 SHANDILYOPANISHAD 
94 SHAREERIKOPANISHAD 
95 SHIVASANKALPOPANISHAD 
96 SHUKARAHASYOPANISHAD 
97 SHVETHASVOTHAROPANISHAD 
98 SANYASA UPANISHAD 
99 SARASWATHEERAHASYOPANISHAD 
100 SARVASAROPANISHAD 
101 SAVITHRI UPANISHAD 
102 SEETHOPANISHAD 
103 SUBALOPANISHAD 
104 SURYOPANISHAD 
105 SOUBHAGYOPANISHAD 
106 SKANDOPANISHAD 
107 SVOSAMVEDYOPANISHAD 
108 HAMSOPANISHAD 
109 BRIHADARANYAKOPANISHAD 
110 MAHANARAYANA UPANISHAD 
111 NRESIMHATHAPINI UPANISHAD 
112 SOUBHAGYLAKHMI UPANISHAD 
113 BAHAVRECHA UPANISHAD 
114 TRISHIKHIBRAHMANA UPANISHAD 
115 PINGALA UPANISHAD 
116 THUREEYATHEETHA AVADHOOTHA UPANISHAD 
117 THARASHARA UPANISHAD 
118 MUKTHIKA UPANISHAD 
119 AMRITHANADA UPANISHAD 
120 SUKRARAHASYOPANISHAD 

121 TEJABINDU UPANISHAD 
122 YOGASHIGA UPANISHAD 
123 YOGAKUNDILINI UPANISHAD 
124 VARAHA UPANISHAD 
125 SARASWATHEE RAHASYA UPANISHAD 
126 VASUDEVA UPANISHAD 
127 AVYAKTHA UPANISHAD 
128 DARSANOPANISHAD 
129 ADHARVASHIKHA UPANISHAD 
130 BRIHAD JABALA UPANISHAD 
131 NRESIMHA UTTARA THAPINI UPANISHAD 
132 RAMA RAHASYA UPANISHAD 
133 RAMATHAPINI UPANISHAD 
134 ANNAPOORNA UPANISHAD 
135 TRIPURA THAPINI UPANISHAD 
136 BHASMAJABALA UPANISHAD 
137 SREE KRISHNA UPANISHAD 
138 HAYAGRIVA UPANISHAD 
139 DATRATHEYA UPANISHAD 
140 ADVAITHA UPANISHAD 
141 ACHAMANA UPANISHAD 
142 ARSHEYA UPANISHAD 
143 ITHIHASA UPANISHAD 
144 PINDOPANISHAD 
145 PRANAVOUPANISHAD 
146 BHASHKALA MANTHRA UPANISHAD 
147 NIRUKTHOUPANISHAD 
148 MADANMAYOPANISHAD 
149 VISHRAMOPANISHAD 
150 SHOUKA UPANISHAD 
151 SURYATHAPINI UPANISHAD 
152 URDHVOAPUNDROPANISHAD 
153 KARTHYAYANOPANISHAD 
154 GOPICHANDANA UPANISHAD 
155 PARAMATHMIKA UPANISHAD 
156 YAJNGOPAVEETHA UPANISHAD 
157 RADHOPANISHAD 
158 SREEKRISHNA PURUSHOTHAMA UPANISHAD 
159 SUDARSANA UPANISHAD 
160 SANKARSHANA UPANISHAD 
161 PARAYANA UPANISHAD 
162 BILVOA UPANISHAD 
163 MRUTHYULANGULOPANISHAD 
164 LINGOPANISHAD 
165 VAJRAPANCHAROUPANISHAD 
166 SADANANDA UPANISHAD 
167 KALIKA UPANISHAD 
168 KALIMEDHADEEKSHITHA UPANISHAD 
169 GUHYAKALYOOPANISHAD 
170 THAROPANISHAD 
171 LAKHU AVADHOOTHA UPANISHAD 
These are a few names from Sadhale's collection:[76]
advaita
advaitabhaavanaa
anubhavasaara
amanaska
aruNa
avadhuuta
aachamana
aatmapuujaa
aatharvaNadvitiiya
aayurveda
aarshheya
aashrama
itihaasa
uurdhvapuNDra
aatmashhaTka
kaThashruti
kaatyaayana
kaamaraajakiilitoddhaara
kaalika
kaaliimedhaadiikshita
kaula
gaNeshapuurvataapinii
gaNesha_uttarataapinii
gaandharva
gaayatrii

gaayatriirahasya
guhyakaalii
guhyashhoDhaanyaasa
gopiichandana
chaturveda
chaaksushha
chitti
chhagaleya
jaabaaladarshana
taara
turiiya
tulasii
tripuraamahaa
trisuparNa
datta
durvaasa
devii
dvaya
naarada
naaraayaNapuurvataapinii
naaraayaNa_uttarataapinii
nirukta
niilarudra
nR^isi.nhashhaTchakra
paaramaatmika

paaraayaNa
piNDa
piitaambara
purusuukta
praNava
baTuka
baashhkalamantra
bhavasantaraNa
maThaamnaaya
mallaaya
mR^ityulaa~Nguula
yaj~nopaviita
yogaraaja
yoga
raajashyaamalaarahasya
raadhikaa
raadhaa
rudra
lakshmii
laa~Nguula
li~Nga
vajrapa~njara
vanadurgaa
vishraama
vishhNuhR^idayavaitathya
shaunaka
Here is a list from the different books I have: [76]
a~njalii
a~Nkusha
aakaashii
aavaahanii
abhaya
adhomukha
agocharii
apaana
ashvinii
avaguNThana
bhuutunii
biija
chakra

chaturmukha
chinmudraa
dhenu
dhyaana
dvimikha
gaalinii
goyoni
graasa
grathita
j~naana
jaladhara
jvaalinii
kaakiNii

khecharii
kuurma
lelihaana
li~Nga
mahaa
mahaakraanta
matsya
meru
mR^iga
mudgara
mushhTika
naaracha
naasagra

nirvaaNa
pa~nchamukha
pa~Nkaja
pallava
pavaniikaraNa
praaNa
pralamba
sa.nhaara
sa.nnidhaapanii
sa.nnirodhanii
sa.nsthaapanii
samaana
sammukhiikaraNii

sampuTa
sha~Nkha
shaambhavii
shakaTa
shhaNmukha
si.nhaakraanta
sumukha
surabhi
taarksha
tattva
trimukha
udaana
unmukhonmuka

vairaagya
vajrolii
varaaha
varada
vistR^ita
vitata
vyaana
vyaapakaa~njalii
yamapaasha
yoni
Here are some more upanishads [from the missing page]: abbrv. expansion not available ]:
shaunaka
shiva sa.n.
shriivi. taa.
shiva
shaam.
shaam. lyo.
shhoDha
suurya

sa.n. so.
sarasva.
sudarsha.
sahavai.
sa.nitaa
saamara.
svasa.n.
hanum.

heramba
si. shi.
sadaanan.
si. saa.
si. vi.
suuryataa.
suu. taa.
From Sunder Hattangadi (sunderh@hotmail.com)
A list of Upanishads in Translations (prepared by Kurt Keutzer)
The following are available English translations of various upanishads in print, including some yoga upanishads: The following list indicates which yoga upanishads are translated in which references.

K.N. Aiyar refers to Aiyar 1914 
Deussen refers to Deussen 1980 
Kriyananda refers to Kriyananda 1993 
Sivananda refers to Sivananda 1994 
Varenne refers to Varenne 1989 

Advayataraka Upanishad 
Amritabindu Upanishad (K. N. Aiyar, Deussen, Kriyananda) 
Amritanada Upanishad (Deussen) 
Brahmabindu Upanishad (Deussen) 
Brahmavidya Upanishad (Deussen, Kriyananda) 
Chulika Upanishad (Deussen, Kriyananda) 
Darshana Upanishad (Varenne) 
Dhyanabindu Upanishad (K. N. Aiyar, Deussen, Kriyananda) 
Hamsa Upanishad (K. N. Aiyar) 
Ksurika Upanishad (Deussen, Kriyananda) 
Mahavakya Upanishad 
Mandalabrahma Upanishad (K. N. Aiyar) 
Nadabindu Upanishad (K. N. Aiyar, Deussen, Kriyananda) 
Pashupatabrahma Upanishad 
Shandilya Upanishad (K. N. Aiyar) 
Tejobindu Upanishad (Deussen, Kriyananda) 
Trishikhibrahma Upanishad 
Varaha Upanishad (K. N. Aiyar) 
Yogachudamani Upanishad 
Yogakundali Upanishad (K. N. Aiyar, Sivananda) 
Yogashikha Upanishad (Kriyananda) 
Yogatattva Upanishad (K. N. Aiyar, Deussen, Kriyananda)

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