Does the country publish full voter registers at the national level online?
Nigeria
Answer
No
Source
ELECTORAL ACT, 2010
Section 10 (3) The Commission shall within sixty days after each year make available to every political party, the names and address of each person registered during that year.
http://www.inecnigeria.org/wp-content/uploads/2013/07/EA2010.pdf
Comment
The full register is available to political parties in a hard copy format.