English – I love you
Afrikaans – Ek het jou lief
Albanian – Te dua
Arabic – Ana behibak (to male)
Arabic – Ana behibek (to female)
Armenian – Yes kez sirumen
Bambara – M’bi fe
Bengali – Ami tomake bhalobashi (pronounced: Amee toe-ma-kee bhalo-bashee)
Belarusian – Ya tabe kahayu
Bisaya – Nahigugma ako kanimo
Bulgarian – Obicham te
Cambodian – Soro lahn nhee ah
Cantonese Chinese – Ngo oiy ney a
Catalan – T’estimo
Cherokee – Tsi ge yu i (Thanks Nancy!)
Cheyenne – Ne mohotatse
Chichewa – Ndimakukonda
Corsican – Ti tengu caru (to male)
Creol – Mi aime jou
Croatian – Volim te
Czech – Miluji te
Danish – Jeg Elsker Dig
Dutch – Ik hou van jou
Elvish – Amin mela lle (from The Lord of The Rings, by J.R.R. Tolkien)
Esperanto – Mi amas vin
Estonian – Ma armastan sind
Ethiopian – Afgreki’
Faroese – Eg elski teg
Farsi – Doset daram
Filipino – Mahal kita
Finnish – Mina rakastan sinua
French – Je t’aime, Je t’adore
Frisian – Ik h�ld fan dy
Gaelic – Ta gra agam ort
Georgian – Mikvarhar
German – Ich liebe dich
Greek – S’agapo
Gujarati – Hoo thunay prem karoo choo
Hiligaynon – Palangga ko ikaw
Hawaiian – Aloha Au Iaoe
Hebrew (Thanks Lilach)
Hebrew to male: "ani ohev otcha" (said by male) "Ohevet ot'cha" (said by female)
Hebrew to female: "ani ohev otach" (said by male) "ohevet Otach" (said by female) Hiligaynon - Guina higugma ko ikaw
Hindi - Hum Tumhe Pyar Karte hae
Hmong - Kuv hlub koj
Hopi - Nu' umi unangwa'ta
Hungarian - Szeretlek(Thanks D�ra!)
Icelandic - Eg elska tig
Ilonggo - Palangga ko ikaw
Indonesian - Saya cinta padamu
Inuit - Negligevapse
Irish - Taim i' ngra leat
Italian - Ti amo
Japanese - Aishiteru
or
anata ga daisuki desu
Kannada - Naanu ninna preetisuttene
Kapampangan - Kaluguran daka
Kiswahili - Nakupenda
Konkani - Tu magel moga cho
Korean - Sarang Heyo
or
Nanun tangshinul sarang hamnida
Laos - Koi Huk Jao
Latin - Te amo
Latvian - Es tevi miilu
Lebanese - Bahibak
Lithuanian - Tave myliu
Luxembourgeois - Ech hun dech g�er
Macedonian - Te Sakam
Malay - Saya cintakan mu / Aku cinta padamu
Malayalam - Njan Ninne Premikunnu
Maltese - Inhobbok
Mandarin Chinese - Wo ai ni
Marathi - Me tula prem karto
Mohawk - Kanbhik
Moroccan - Ana moajaba bik
Nahuatl - Ni mits neki
Navaho - Ayor anosh'ni
Norwegian - Jeg Elsker Deg
Pandacan - Syota na kita!!
Pangasinan - Inaru Taka
Papiamento - Mi ta stimabo
Persian - Doo-set daaram
Pig Latin - Iay ovlay ouyay
Polish - Kocham Ciebie
Portuguese - Eu te amo
Romanian - Te iubesc
Russian - Ya tebya liubliu
Scot Gaelic - Tha gra\dh agam ort
Serbian - Volim te
Setswana - Ke a go rata
Sign Language - ,\,,/ (represents position of fingers when signing'I Love You')
Sindhi - Maa tokhe pyar kendo ahyan
Sioux - Techihhila
Slovak - Lubim ta
Slovenian – Ljubim te
Spanish – Te quiero / Te amo
Swahili – Ninapenda wewe
Swedish – Jag alskar dig
Swiss-German – Ich lieb Di
Surinam – Mi lobi joe
Tagalog – Mahal kita
Taiwanese – Wa ga ei li
Tahitian – Ua Here Vau Ia Oe
Tamil – Nan unnai kathalikaraen
Telugu – Nenu ninnu premistunnanu
Thai – Chan rak khun (to male)
Thai – Phom rak khun (to female)
Thai (informal) Rak te (thx CAF!)
Turkish – Seni Seviyorum
Ukrainian – Ya tebe kahayu
Urdu – mai aap say pyaar karta hoo
Vietnamese – Anh ye^u em (to female)
Vietnamese – Em ye^u anh (to male)
Welsh – ‘Rwy’n dy garu di  
Yiddish – Ikh hob dikh
Yoruba – Mo ni fe