Lotto–Soudal (UCI team code: LTS) is a Belgian professional cycling team at UCI WorldTeam level sponsored by the Belgian lottery and Soudal, an adhesives and sealants manufacturer. For the 2016 and 2017 editions of Paris–Nice, the 2018 Giro d'Italia, and the 2019 Tour de Pologne, the team raced under the name Lotto Fix ALL, and in a different colour of kit, to promote a particular product from the Soudal range. The same organisations also sponsor a women's cycling team, Lotto–Soudal Ladies.

Lotto has a long history of cycling sponsorship, they began sponsoring 1984 with Tönissteiner-Lotto-Mavic-Pecotex. In 1985, it became prime sponsor of a team bearing only its name. Walter Godefroot and Patrick Lefevere were early directeurs sportifs. The fusion of the Lotto-Adecco and Domo-Farm Frites teams for the start of the 2003 season created the current team and structure in the guise of Lotto-Domo.

Omega Pharma had previously been a co-sponsor of the Quick Step-Davitamon team in 2003 and 2004. Omega Pharma became the main sponsors in 2005, under their Davitamon brand name. The team name switched to Omega Pharma's Predictor brand name in 2007 and the Silence brand in 2008. From 2010 the team became known as Omega Pharma-Lotto, before moving to the Quick-Step setup for the 2012 season.

Belisol became co-sponsors in 2012, and are a Belgian company making windows and doors and solar panels.

On the final day of the 2014 Tour de France the team announced that they had secured new sponsorship for the team with Soudal. Soudal was founded in 1966 and produces a range of sealants, adhesives and foams. Soudal will become a co-naming sponsor for the next six seasons, ensuring the team continues until the 2020 season, the team name becoming Lotto Soudal. Lotto will continue to sponsor the team, as well as the women's team and under-23 team.^[5]

For one stage race each year since 2016 (at the 2016 Paris–Nice, 2017 Paris–Nice, 2018 Giro d'Italia, and 2019 Tour de Pologne), the team raced under the name Lotto Fix ALL and changed the team kit to a grey colour to reflect one of Soudal's key brands.^[6]

The team is managed by Marc Sergeant and Bill Olivier and they are assisted by Herman Frison, Jean-Pierre Heynderickx, Bart Leysen, Marc Wauters, Mario Aerts and Michiel Elijzen. Johan Mordijck is the media officer.

After Tosh Van der Sande accidentally listed the wrong nasal spray brand in the paperwork at the 2018 Six Days of Ghent where he returned a positive test for prednisolone, a substance found in the nasal spray Sofrasolone,^[7] he was temporarily suspended by the team.^[8] Van der Sande was later cleared of any wrongdoing by the UCI.^[9][10][11]