No. Botswana doesn't ask visitors to fill in an online arrival form (also called an entry form, immigration card or landing card) before they travel. Ebola health screening may apply to travellers from affected regions.
Do I still need a visa for Botswana?
An arrival form is not a visa. Whether you need a visa or an electronic travel authorization depends on your nationality, so check Botswana's official immigration website or your own government's travel advice.
Other countries in East, Central and Southern Africa