Access the website of the Embassy of Niger in the United States (embassyofniger.org; 2204 R St. NW, Washington, DC; 202-483-4224). Click on the "Consular Forms" link on the left side of the page. This will open a page with a long list of forms -- in French.
Click on the fourth form on the list: "Prorogation de Passeport." This means, literally, "extension of passport." This opens the passport renewal form as an Adobe PDF file.
Print and fill out the form. Make a copy of the form, as you will need to present two copies in order to request that your passport be renewed. Make a second copy, to keep for your records.
Gather the other required documentation. Aside from two copies of the passport renewal form, you will need two passport photos and a passport renewal fee of $84.46, as of March 2011. You may also need your birth certificate, copies of your previous passport and your national identity document.
Mail copies of these documents to the Niger Embassy in Washington, DC. Niger does not have consulates outside of Washington, DC, so you will have to use the main embassy.
Mail copies of these documents to the Ministry of the Interior in Niamey if you are attempting to renew a passport from within Niger. Alternately, you can present them in person.
