An equally interesting question is whether there are countries with a significant minority language that issue circulation coins only in the majority language. Italy (German), the Czech republic (Hungarian), Canada (French) and the US (Spanish) come to mind.
Not Canada. AFAIK all text on Canadian coins that isn't in Latin is in both French and English. Generally this only applies to commemoratives, as the standard coinage was (I imagine) specifically designed so that the only text was <monarch name in Latin> D.G. REGINA/REX, the name CANADA (which is the same in both English and French) and the currency names DOLLAR(S) and CENT(S) (which ditto).
And of the countries you list, Canada is the only one where both languages are official, and I think this makes a difference. Indian coins are generally in Hindi and English, which are the country's official language, even though the number of speakers of India's other 20-odd languages are far more numerous than e.g. Spanish speakers in the US and certainly French speakers in Canada.
What would be particularly interesting would be if there is a country which has more than one official language but only issues regular coinage in one of them (or at least not all of them), excluding those which use Latin or some other third language that is not official. The Soviet Union did; all its coins were in Russian apart from the text "Union of Soviet Socialist Republics" in all the republics' official languages in minuscule script in the national arms. But I'm not sure precisely what the legal status of the non-Russian languages was. If it was similar to the status of Welsh in the UK or Basque in Spain - i.e. an official language in Wales and the Basque Country respectively but not in the whole country - then the USSR doesn't really count.
Are there others?
Edit: I've answered my own question. On circulation coins at least, the text on Irish coins is only in Irish (entirely true on pre-2001 coinage; true of the national side on euros), even though the official languages of Ireland are Irish and English. It consists of the one word ÉIRE, Irish for Ireland. The predecimal coins also had their denominations in Irish.