The 2023–24 LEN Champions League is the 61st edition of LEN's premier competition for men's water polo clubs. Because of the congested schedule, there's a new format this year. Pro Recco are the three

The 2023–24 LEN Challenger Cup was the 2nd edition of a water polo competition organised by the Ligue Européenne de Natation. It acts as the third tier, below the LEN Champions League and the LEN Euro