The 29-year-old backrower was charged after a brawl in The White Rabbit nightclub in La Rochelle in south-west France where he plays for the La Rochelle club, coached by ex-All Blacks lock Jono Gibbes and captained by former All Black Victor Vito.
French news outlets reported that Timani had been fined €10,000 ($NZ17,650) this week by the Rochelle Criminal Court.
Timani was booted out of the nightclub after a 4.30am brawl on May 12, 2019.
The court heard that as he resisted removal, he threw a bottle in the face of one of the bouncers.
