The sentence is part of a series of prosecutions over alleged "hate speech" that have raised concerns about press freedom in the country, according to Reuters.
The verdict, first reported by Georgia's Interpress news agency, marks the second detention and third penalty for Vakho Sanaia, a journalist with opposition television channel Formula.
The governing Georgian Dream party, which has been in power since 2012, has stepped up its crackdown on opposition figures and groups since winning reelection in an October 2024 parliamentary vote.
The government's subsequent decision to freeze the country's European Union accession process triggered mass street demonstrations, as Georgians protested what they saw as an authoritarian turn, Reuters reported.
It said Georgia's constitutional court is due to hear next week a lawsuit filed by Georgian Dream seeking to ban the country's largest opposition parties.
This summer, the government established a body within the interior ministry to monitor public statements that "violate/insult human dignity and contain hate speech."
Dozens of people have since been arrested or fined for holding placards at rallies or posting comments online criticising politicians and other public figures, including billionaire former Prime Minister Bidzina Ivanishvili, who is widely viewed as Georgia's de facto ruler.
Human Rights Watch and other rights groups have condemned the prosecutions, saying they threaten freedom of expression, Reuters reported.
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Source: Reuters