A person shall be deemed a Sudanese national by birth if he/she or his/her father was born in Sudan. A person born to a mother who is Sudanese by birth shall also be entitled to Sudanese citizenship.
As per Article 7 of the Nationality Act of 1994, and as amended in the following years, the Minister of Interior may grant the Certificate of Sudanese citizenship by naturalisation to any foreigner if a request is submitted in the prescribed form. The Minister must be provided with proof that the applicant has reached the age of majority (18 years old), is of complete eligibility, has been lawfully and continuously resident in Sudan for at least ten years, is of good conduct and of sound mind, was not subject to criminal penalty, and lastly, has a lawful way of living.
According to Article 8, a foreign woman married to a Sudanese man shall have the right to obtain Sudanese nationality. The Minister may grant the Sudanese Nationality Certificate by naturalisation to any foreign woman upon submission of the required form. The wife must have resided in Sudan with her Sudanese husband for at least two years from the date of submitting the application.
The President of the Republic may, on the recommendation of the Minister, also grant Sudanese citizenship by naturalisation to any foreigner, as laid down in Article 9 of the law.
No restrictions on dual citizenship are laid down in Sudanese law. However, Article 10 of the Sudanese Nationality Act Amendment of 2011 states that Sudanese nationality shall automatically be revoked if a person acquires the nationality of South Sudan.