The Jersey Battle of Flowers is an annual carnival held in the Channel Island of Jersey in the second week of August. The festival consists of music, funfairs, dancers, majorettes and a parade of flower floats alongside various street entertainers. It was inaugurated in 1902 to celebrate the Coronation of Edward VII and the largest attendance to date is thought to be that of 1969, when 60,000 people were present.

The major floats are usually produced by the parishes of Jersey. Miss Battle of Flowers, the overall winner of the Miss Parish contests, rides on her own specially made float. There was also formerly a Maid of Honour who rode with the Miss Battle but this has now been dropped. The tradition of having a Mr Battle to escort Miss Battle was in abeyance for a number of years, but Kyran Bracken revived the role in 2007.

The 'Battle' itself originally consisted of dismantling the floats to provide floral ammunition for a literal battle of flowers between participants and spectators, but this aspect has long been abandoned. Since 1989, a night time Moonlight Parade with the floats festooned in lights has been introduced, culminating with a large fireworks display.