SharePoint supported languages, culture names and locale IDs

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Language Name	Culture Name	Locale ID
Arabic	ar-sa	1025
Bulgarian	bg-bg	1026
Catalan	ca-es	1027
Chinese (Simplified)	zh-cn	2052
Chinese (Traditional, Taiwan)	zh-tw	1028
Croatian	hr-hr	1050
Czech	cs-cz	1029
Danish	da-dk	1030
Dutch	nl-nl	1043
English	en-us	1033
Estonian	et-ee	1061
Finnish	fi-fi	1035
French	fr-fr	1036
German	de-de	1031
Greek	el-gr	1032
Hebrew	he-il	1037
Hindi	hi-in	1081
Hungarian	hu-hu	1038
Italian	it-it	1040
Japanese	ja-jp	1041
Kazakh	kk-kz	1087
Korean	ko-kr	1042
Latvian	lv-lv	1062
Lithuanian	lt-lt	1063
Norwegian (Bokmål)	nb-no	1044
Polish	pl-pl	1045
Portuguese (Brazil)	pt-br	1046
Portuguese (Portugal)	pt-pt	2070
Romanian	ro-ro	1048
Russian	ru-ru	1049
Serbian (Latin)	sr-latn-cs	2074
Slovak	sk-sk	1051
Slovenian	sl-si	1060
Spanish	es-es	3082
Swedish	sv-se	1053
Thai	th-th	1054
Turkish	tr-tr	1055
Ukrainian	uk-ua	1058