Overleaf supports a fair number of OTF/TTF fonts in different scripts. Their names are listed below, and you can see a sampler here. We have the complete Noto fonts (as of Nov 2016!).
Latin-script Fonts
Serif fonts
- Aboriginal Serif
- Abyssinica SIL
- Accanthis ADF Std No3
- Akkadian
- Alexander
- Alfios
- Asana Math
- Asea
- Averia Serif GWF
- BABEL Unicode
- Bitstream Charter
- Bitstream Vera Serif
- Bookman Uralic
- CMU Classical Serif
- CMU Serif
- CMU Serif Extra
- CMU Serif Upright Italic
- Caladea
- Carlito
- Caslon
- Century Catalogue
- Century Schoolbook L
- Charis SIL
- Charis SIL Compact
- Conakry
- DejaVu Serif
- Doulos SIL
- Doulos SIL Compact
- Dustismo Roman
- EB Garamond
- EMERITA Latina
- Ezra SIL
- Ezra SIL SR
- Fanwood
- Fanwood Text
- Free Bookman
- Free Paladin
- Free Schoolbook
- Free Times
- FreeSerif
- GFS Artemisia
- GFS Didot
- Galatia SIL
- Gentium
- Gentium Basic
- Gentium Book Basic
- Gentium Plus
- Gentium Plus Compact
- GentiumAlt
- Georgia
- Junicode
- Latin Modern Math
- Latin Modern Roman
- Latin Modern Roman Caps
- Latin Modern Roman Demi
- Latin Modern Roman Dunhill
- Latin Modern Roman Slanted
- Liberation Serif
- Linden Hill
- Linux Libertine Display O
- Linux Libertine O
- Nakula
- Nimbus Roman No9 L
- Noto Serif
- Old Standard TT
- Pagul
- Palladio Uralic
- Prociono
- Prociono TT
- Quattrocento
- Quercus
- Rekha
- Roman Uralic
- STIX
- Sahadeva
- Schoolbook Uralic
- Symbola
- Tai Heritage Pro
- TeX Gyre Bonum
- TeX Gyre Pagella
- TeX Gyre Schola
- TeX Gyre Termes
- Times New Roman
- Tinos
- Tymes
- URW Bookman L
- URW Palladio L
- Utopia
- Vollkorn
Sans-serif fonts
- Aboriginal Sans
- Aerial
- Anatolian
- Andika
- Andika Compact
- Andika New Basic
- Arial
- Arimo
- Aroania
- Averia GWF
- Averia Sans GWF
- BetecknaLowerCase
- Bitstream Vera Sans
- CMU Bright
- CMU Sans Serif
- CMU Sans Serif Demi Condensed
- Cabin
- Caliban
- Cantarell
- Comfortaa
- DejaVu Sans
- Dosis
- Dustismo
- FantasqueSans
- Fira Sans
- Free Avant Garde
- Free Helvetian
- Free Helvetian Condensed
- FreeSans
- GFS Neohellenic
- Gardiner
- Gothic Uralic
- Graph
- Haramain
- Hor
- Jara
- Jet
- Junction
- Jura
- Klaudia
- Latin Modern Sans
- Latin Modern Sans Quotation
- Lato
- Liberation Sans
- Liberation Sans Narrow
- Linux Biolinum O
- Loma
- Nice
- Nimbus Sans L
- Noto Sans
- OpenDinSchriftenEngshrift
- OpenDyslexic
- OpenDyslexicAlta
- Oxygen-Sans
- Phetsarath OT
- Play
- Radis Sans
- Roboto
- Roboto Condensed
- Sans Condensed Uralic
- Sans Uralic
- TeX Gyre Adventor
- TeX Gyre Heros
- TeX Gyre Heros Cn
- Trebuchet MS
- Tuffy
- URW Gothic L
- Ubuntu-Title
- Universalis ADF Std
- Veranda
- Verdana
- Yanone Kaffeesatz
Monospaced fonts
- Aerial Mono
- Andale Mono
- Bitstream Vera Sans Mono
- CMU Typewriter Text
- Courier
- Courier New
- DejaVu Sans Mono
- Fantasque Sans Mono
- Fira Mono
- Free Courier
- FreeMono
- GWMonospace
- Hack
- Inconsolata
- Latin Modern Mono
- Latin Modern Mono Caps
- Latin Modern Mono Light
- Latin Modern Mono Light Cond
- Latin Modern Mono Prop
- Latin Modern Mono Prop Light
- Latin Modern Mono Slanted
- Liberation Mono
- Linux Libertine Mono O
- Mono Uralic
- Nimbus Mono L
- Noto Mono
- OpenDyslexicMono
- Oxygen Mono
- Ricty Diminished
- Ricty Diminished Discord
- TeX Gyre Cursor
Heavy faces
Cursive fonts
- Anaktoria
- Berenika
- Chancery Uralic
- Cupola
- Dancing Script
- Ecolier_court
- Ecolier_lignes_court
- El Abogado Loco
- Elegante
- Free Chancery
- Isabella
- Kristi
- LeckerliOne
- Penguin Attack
- TeX Gyre Chorus
- URW Chancery L
Handwriting fonts
- Abecedario
- Abecedario_guiada
- Abecedario_pautada
- Abecedario_punt-guiada
- Abecedario_punt-pautada
- Abecedario_punteada
- Balker
- Breip
- Comic Sans MS
- DkgHandwriting
- Domestic Manners
- Humor Sans
- Junkyard
- Kaushan Script
- Kristi
- Pecita
- Purisa
- Swift
- Tomson Talks
Fonts for Non-Latin Scripts
Fonts for CJK
Chinese
[TC] Traditional Chinese glyphs only
[SC] Simplified Chinese glyphs only
- AR PL KaitiM Big5,文鼎ＰＬ中楷 [TC]
- AR PL KaitiM GB,文鼎ＰＬ简中楷 [SC]
- AR PL Mingti2L Big5,文鼎ＰＬ細上海宋 [TC]
- AR PL SungtiL GB,文鼎ＰＬ简报宋 [SC]
- AR PL UKai CN
- AR PL UKai HK
- AR PL UKai TW
- AR PL UKai TW MBE
- AR PL UMing CN
- AR PL UMing HK
- AR PL UMing TW
- AR PL UMing TW MBE
- BabelStone Han
- Droid Sans Fallback
- HanaMinA,花園明朝A
- Noto Sans CJK SC
- UKIJ CJK
- WenQuanYi Micro Hei Mono,文泉驿等宽微米黑
- WenQuanYi Micro Hei,文泉驿微米黑
- WenQuanYi Zen Hei Mono,文泉驿等宽正黑
- WenQuanYi Zen Hei Sharp,文泉驿点阵正黑
- WenQuanYi Zen Hei,文泉驿正黑
- cwTeXFangSong [TC]
- cwTeXHeiBold [TC]
- cwTeXKai [TC]
- cwTeXMing [TC]
- cwTeXYen [TC]
Japanese
- AoyagiSosekiFont2,青柳疎石フォント2
- BabelStone Han
- Droid Sans Fallback
- HanaMinA,花園明朝A
- IPAGothic,IPAゴシック
- IPAMincho,IPA明朝
- IPAPGothic,IPA Pゴシック
- IPAPMincho,IPA P明朝
- IPAexGothic,IPAexゴシック
- IPAexMincho,IPAex明朝
- IPAmjMincho,IPAmj明朝
- Komatuna
- Komatuna P
- Konatu Tohaba,小夏 等幅
- Konatu,小夏
- KouzanBrushFontGyousyo,衡山毛筆フォント行書
- KouzanBrushFontSousyo,衡山毛筆フォント草書
- MMCedar
- MMCedar P
- MigMix (1M,1P,2M,2P)
- Migu (1C,1M,1P,2M)
- MisakiGothic
- MisakiMincho
- Mona
- Monapo
- MotoyaLCedar
- MotoyaLMaru
- Noto Sans CJK JP
- Noto Sans Mono CJK JP
- Ricty Diminished
- Ricty Diminished Discord
- Sawarabi Gothic
- SetoFont
- TakaoExGothic
- TakaoExMincho
- TakaoGothic
- TakaoMincho
- TakaoPGothic
- TakaoPMincho,
- UKIJ CJK
- Ume Gothic
- Ume P Mincho,梅P明朝
- Ume UI Gothic O5,梅UIゴシックO5
- Ume UI Gothic,梅UIゴシック
- UmePlus Gothic
- UmePlus P Gothic
- VL Gothic,VL ゴシック
- VL PGothic,VL Pゴシック
- kiloji
Korean
- Baekmuk Batang
- Baekmuk Dotum
- Baekmuk Gulim
- Baekmuk Headline
- Bandal
- Bangwool
- Eunjin Nakseo
- Eunjin
- Guseul
- LexiGulim
- LexiSaebomR
- Nanum Brush Script
- Nanum Pen Script
- NanumBarunGothic
- NanumBarunpen
- NanumBarunpen
- NanumGothic Eco
- NanumGothic
- NanumGothicCoding
- NanumMyeongjo Eco
- NanumMyeongjo
- Noto Sans CJK KR
- Noto Sans Mono CJK KR
- UKIJ CJK
- UnBatang
- UnBom
- UnDinaru
- UnDotum
- UnGraphic
- UnGungseo
- UnJamoBatang
- UnJamoDotum
- UnJamoNovel
- UnJamoSora
- UnPen
- UnPenheulim
- UnPilgi
- UnPilgia
- UnShinmun
- UnTaza
- UnVada
- UnYetgul
Fonts for Arabic script
- AlArabiya
- AlBattar
- AlHor
- AlManzomah
- AlYarmook
- Amiri
- Amiri Quran
- Arab
- Arial
- Cortoba
- Courier New
- DejaVu Sans
- DejaVu Sans Mono
- Dimnah
- Electron
- FreeFarsi
- FreeFarsi Monospace
- FreeMono
- FreeSerif
- Furat
- Granada
- Graph
- Hani
- Harmattan
- Homa
- Hor
- Japan
- Jet
- KacstArt
- KacstBook
- KacstDecorative
- KacstDigital
- KacstFarsi
- KacstLetter
- KacstNaskh
- KacstOffice
- KacstOne
- KacstPen
- KacstPoster
- KacstQurn
- KacstScreen
- KacstTitle
- KacstTitleL
- Kayrawan
- Khalid
- Lateef
- MPH 2B Damase
- Mashq
- Metal
- Nada
- Nagham
- Nazli
- Nice
- Noto Kufi Arabic
- Noto Naskh Arabic
- Noto Naskh Arabic UI
- Noto Nastaliq Urdu
- Ostorah
- Ouhod
- PakType Ajrak
- PakType Naqsh
- PakType Naskh Basic
- PakType Naskh Basic Farsi
- PakType Naskh Basic SA
- PakType Naskh Basic Sindhi
- PakType Naskh Basic Urdu
- PakType Tehreer
- Petra
- Rasheeq
- Rehan
- Salem
- Scheherazade
- SetoFont
- Shado
- Sharjah
- Sindbad
- Tarablus
- Thabit
- Tholoth
- Times New Roman
- Titr
- UKIJ Basma
- UKIJ Bom
- UKIJ CJK
- UKIJ Chechek
- UKIJ Diwani Tom
- UKIJ Ekran
- UKIJ Esliye
- UKIJ Esliye Chiwer
- UKIJ Esliye Neqish
- UKIJ Kesme
- UKIJ Kesme Tuz
- UKIJ Merdane
- UKIJ Nasq
- UKIJ Orqun Basma
- UKIJ Orqun Yazma
- UKIJ Qara
- UKIJ Qolyazma Tez
- UKIJ Qolyazma Tuz
- UKIJ Qolyazma Yantu
- UKIJ Sulus Tom
- UKIJ Teng
- UKIJ Tiken
- UKIJ Title
- UKIJ Tor
- UKIJ Tughra
- UKIJ Tuz
- UKIJ Tuz Basma
- UKIJ Tuz Gezit
- UKIJ Tuz Kitab
- UKIJ Tuz Tom
- UKIJ_Mac Ekran
- Unikurd Web
- mry_KacstQurn
Fonts for Hebrew script
- Arial
- Arimo
- BABEL Unicode
- Caliban
- Caslon
- Courier New
- Cousine
- David CLM
- DejaVu Sans
- Ezra SIL
- Ezra SIL SR
- Frank Ruehl CLM
- FreeMono
- FreeSans
- FreeSerif
- GWMonospace
- Hadasim CLM
- Keter YG
- Linux Biolinum Keyboard O
- Linux Biolinum O
- Linux Libertine Display O
- Linux Libertine Initials O
- Linux Libertine O
- MPH 2B Damase
- MigMix 1P
- MigMix 2P
- Migu 1C
- Migu 1P
- Miriam CLM
- Miriam Mono CLM
- -Nachlieli CLM-
- Noto Sans Hebrew
- SetoFont
- Shofar
- Simple CLM
- Stam Ashkenaz CLM
- Stam Sefarad CLM
- Times New Roman
- Tinos
- UmePlus P Gothic
- VL PGothic
Fonts for Greek
- Aegean
- Alexander
- Alfios
- Anaktoria
- Analecta
- Andale Mono
- Arial
- Arial Black
- Arimo
- Aroania
- Asana Math
- Asea
- Atavyros
- Avdira
- BABEL Unicode
- BPG Mrgvlovani Caps GNU&GPL
- BPG Mrgvlovani GPL&GNU
- CMU Bright
- CMU Classical Serif
- CMU Sans Serif Demi Condensed
- CMU Serif
- CMU Serif Upright Italic
- CMU Typewriter Text
- Caliban
- Carlito
- Caslon
- Comfortaa
- Comic Sans MS
- Courier New
- Cousine
- Cupola
- DejaVu Sans
- DejaVu Sans Mono
- DejaVu Serif
- EB Garamond
- Fira Mono
- Fira Sans
- FreeMono
- FreeSans
- FreeSerif
- GFS Artemisia
- GFS Baskerville
- GFS BodoniClassic
- GFS Complutum
- GFS Didot
- GFS Didot Classic
- GFS Gazis
- GFS Neohellenic
- GFS Olga
- GFS Porson
- GFS Solomos
- GFS Theokritos
- GWMonospace
- Galatia SIL
- Gentium
- Gentium Plus Compact
- GentiumAlt
- Georgia
- Impact
- Junicode
- Jura
- Konatu
- Konatu Tohaba
- Lato
- Liberation Mono
- Liberation Sans
- Liberation Sans Narrow
- Liberation Serif
- Linux Biolinum O
- Linux Libertine Display O
- Linux Libertine O
- MPH 2B Damase
- Noto Mono
- Noto Sans
- Noto Sans UI
- Noto Serif
- Old Standard TT
- Pecita
- Play
- Ricty Diminished
- Ricty Diminished Discord
- Roboto
- Roboto Condensed
- STIX
- STIX Math
- STIXGeneral
- Symbola
- Times New Roman
- Tinos
- Trebuchet MS
- Tuffy
- VL Gothic
- VL PGothic
- Verdana
Fonts for Coptic Alphabets
- Noto Sans Coptic
- Sophia Nubian
Indic Languages
Bengali
- Ani
- BABEL Unicode
- FreeSans
- FreeSerif
- Jamrul
- Likhan
- Lohit Assamese
- Lohit Bengali
- Mitra Mono
- Mukti Narrow
- Noto Sans Bengali
- Noto Sans Bengali UI
- Noto Serif Bengali
Hindi (Devanagari script)
- Aksharyogini2
- Annapurna SIL
- BABEL Unicode
- Chandas
- FreeSans
- FreeSerif
- Gargi
- Lohit Devanagari
- Nakula
- Noto Sans Devanagari
- Noto Sans Devanagari UI
- Noto Serif Devanagari
- Sahadeva
- Samanata
- Samyak Devanagari
- Sarai
Malayalam
- AnjaliOldLipi
- Dyuthi
- FreeSans
- FreeSerif
- Kalyani
- Lohit Malayalam
- Meera
- Noto Sans Malayalam
- Noto Sans Malayalam UI
- Noto Serif Malayalam
- Rachana
- RaghuMalayalam
- Samyak Malayalam
- Suruma
Tamil
- FreeSerif
- Lohit Tamil
- Lohit Tamil Classical
- Meera Tamil
- Noto Sans Tamil
- Noto Sans Tamil UI
- Noto Serif Tamil
- Samyak Tamil
- TAMu_Kadambri
- TAMu_Kalyani
- TAMu_Maduram
- TSCu_Comic
- TSCu_Paranar
- TSCu_Times
Fonts for Thai
- Arundina
- Caslon
- FreeSerif
- Garuda
- Loma
- Noto Sans Thai
- Noto Sans Thai UI
- Noto Serif Thai
- Sawasdee
- Waree
Fonts for Myanmar
- Noto Sans Myanmar
- Noto Sans Myanmar UI
- Padauk Book
Fonts for Tibetan
- Jomolhari
- Noto Sans Tibetan
- Tibetan Machine Uni