Ramon, one of the closest allies of Prime Minister Ehud Olmert, was forced to resign last summer after a Tel Aviv court charged him with forcibly kissing an 18-year-old servicewoman at a Defense Ministry party.
Ramon, 56, denies any misconduct, maintaining that the kiss was consensual. He is expected to appeal the Tel Aviv Magistrates Court's verdict.
The former minister's conviction came just days after President Moshe Katsav was forced to take a leave of absence following an announcement that the Prosecutor General's Office could indict him on charges of rape and sexual harassment.
Olmert also faces a criminal investigation. He is suspected of impropriety in connection with the sell-off of a government stake in a bank in 2005, when he was finance minister, and appointments to a government-funded business authority in 2004, during his term as trade minister.