Olga Sidorova may mean

• Olga Sharkova-Sidorova (born 1968), a Russian fencer
• Olga Sidorova (trapezist) (born 1974), a Russian circus performer, now teaching in Australia

• Ticlopidine Hydrochloride
• +tic Nee-chan
• +Tic Nee-san
• TICO
• Tico A. Perez
• Tico Fernandes
• Ticomeri language
• Ticonata
• Ticonata Island
• Ticonderoga-class aircraft carrier
• Ticonderoga class cruiser
• Ticonderoga (hamlet), New York
• Ti conosco mascherina
• TI Constant Memory
• Tico Rico
• Tico Robot
• TI Corp
• Ticos Air
• Tico Salamander
• Tico salamander
• Ticos Floarea
• Ticos-Floarea
• Tico-Tico no Fubà
• Ti Couloute
• Ti Couloute, Arcahaie, Ouest