Ga. Code § 21-2-520 : ELECTIONS — ELECTIONS AND PRIMARIES GENERALLY — CONTESTED ELECTIONS AND PRIMARIES —2-520 - Definitions

As used in this article, the term:

(1) "Contestant" means any person or persons entitled under Code Section 21-2-521 to contest the result of any primary or election.
(2) "Defendant" means:
(A) The person whose nomination or election is contested;
(B) The person or persons whose eligibility to seek any nomination or office in a run-off primary or election is contested;
(C) The election superintendent or superintendents who conducted the contested primary or election; or
(D) The public officer who formally declared the number of votes for and against any question submitted to electors at an election.

OCGA § 21-2-520