What language do Ukrainians speak?

They speak Ukrainian

From the resources that I have found, the answer above is correct. You might also check out the information on the following link. Ukrainian language - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Ukrainian_language)

What is quoted from it is below.



Ukrainian (украї́нська мо́ва, ukrayins'ka mova, ) is a language of the [U]East Slavic subgroup (http://en.wikipedia.org/wiki/East_Slavic_languages) of the Slavic languages (http://en.wikipedia.org/wiki/Slavic_languages). It is the official state language (http://en.wikipedia.org/wiki/Official_language) of Ukraine (http://en.wikipedia.org/wiki/Ukraine). Written Ukrainian uses a Cyrillic alphabet (http://en.wikipedia.org/wiki/Cyrillic_alphabet). The language shares some vocabulary with the languages of the neighboring Slavic nations (http://en.wikipedia.org/wiki/Slavic_people), most notably with Polish (http://en.wikipedia.org/wiki/Polish_language), Slovak (http://en.wikipedia.org/wiki/Slovak_language) in the West and Belarusan (http://en.wikipedia.org/wiki/Belarusan_language), Russian (http://en.wikipedia.org/wiki/Russian_language) in the North and the East.
The Ukrainian language traces its origins to the Old Slavic language (http://en.wikipedia.org/wiki/Old_Slavic_language) of early medieval state of Kievan Rus' (http://en.wikipedia.org/wiki/Kievan_Rus%27). In its earlier stages it was called Ruthenian (http://en.wikipedia.org/wiki/Ruthenian). "Ukrainian is a lineal descendant of the colloquial language used in Kievan Rus" (10th–13th century).[1] (http://en.wikipedia.org/wiki/Ukrainian_language#cite_note-0)
The language has persisted despite several periods of bans and/or discouragement throughout centuries as it has always maintained a sufficient base among the people of Ukraine, its folklore songs, itinerant musicians (http://en.wikipedia.org/wiki/Kobzar), and prominent authors.