No, the import and export of Tunisian currency is prohibited.

Nevertheless, we recommend that you only spend your money in the local currency and exchange it at your hotel or at a currency exchange bureau. Please always ask for an exchange receipt, as only upon presentation of this receipt can you exchange any remaining Tunisian currency at the airport upon departure. The exchange receipt should always be stamped by the hotel or currency exchange bureau, as otherwise, the banks at the airport may refuse to exchange the money.

Note: These days, banks at the airport aren't always open 24/7. Therefore, it's best to only exchange as much money as you intend to spend. This saves you the hassle of having to exchange it back.