Ozoneoxidation of silyl‐substituted alkenes, namely silylalkenes, proceeds in an addition‐type manner to afford α‐silylperoxy carbonyl compounds in good to excellent yields, without the formation of normal ozonolysis products. Herein the ozoneoxidation of chiral alkenylsilanes prepared from alkynes and a newly designed chiral hydrosilane is reported. The reaction affords silylperoxides with high