* Nigeria: It's the most widely spoken language in Nigeria, with over 70 million speakers.
* Niger: It's the official language of Niger, along with French, and has approximately 20 million speakers.
Hausa is also spoken in other countries in West Africa, including:
* Cameroon
* Chad
* Sudan
* Ghana
* Togo
* Benin
* Central African Republic
It's important to note that the exact number of Hausa speakers varies depending on the source and how "speaker" is defined (e.g., native speaker vs. second language learner).