Reports have suggested City are among the chasing pack lining up moves for Atletico Madrid hit-man Falcao and Brazil sensation Neymar.
Falcao has been linked with a host of clubs, including Chelsea, Monaco and Real Madrid following his goalscoring exploits for Atletico over the last couple of seasons.
Santos attacker Neymar is also being chased by Europe's top clubs with the skilful playmaker expected to leave South America for Europe after the 2014 World Cup.
However, Soriano insists the pair are not on City's transfer radar as they begin plans for their summer transfer plans.
"Neymar and Falcao? [These reports are] false, they have never been on our agenda," Soriano is quoted as saying on Tuttomercatoweb.com.
Soriano also moved to play down talk that Sergio Aguero could leave the Etihad Stadium this summer.
Reports have suggested Aguero could be keen on a return with Spain with Real Madrid long-term admirers of the Argentina international.
Soriano insists City have no plans to sell Aguero and that the 24-year-old is happy to stay at the club.
"The first thing I want to emphasise is that we have never thought of selling Aguero. El Kun will be happy to stay with us this year," Soriano added.