- Copenhagen Marathon
- Copilote Master
- Coppell ISD Athletics
- Coppell Taekwondo Academy
- Copperstate 1000
- Coppertop Golf Club
- Coral Mountain Golf Club
- Coral Ocean Resort
- Corbyn Running Calculator - A run time calculator
- Cordica
- Cordillera Ranch
- Cordoba Open
- CORE - Core Body Temperature
- Core Advantage Interval Timer
- CORE Golf - Practice Drills
- Core Master
- Core Power
- CORE Social Wellness
- Core Sports World
- CORE YOGA
- CORE: Club
- COREFIT SPORT TRAINER
- CorePower Baseball™
- Corfi
- Coritiba Oficial App
- Cork City FC
- Cork GAA
- Cornell College Ram Athletics
- Cornell College Rams
- Corner
- Corner ERP-Soccer Corner
- Corner Sport
- Corner For Gyms
- Cornerstone Athletics
- Cornhole Buddy
- Cornhole Clash
- Cornhole Easy Score
- Cornhole Quickplay
- Cornhole Score Tracker
- Cornélias
- Coronado Club
- Coronado Golf Course
- CORPO Fitness BOX
- Corporación Deportes Peñalolen
- Corporico
- Corrate
- Corre Brasil
- Corre Con Nós
- Corre por ellas
- Corre por tu piel
- Corre por ellas
- Corre por tu piel
- Corre x la Esclerosis Múltiple
- Corremos con PMC Live
- Correndo pola Costa da Morte
- CorriAMO
- Corrida Internacional
- Corriere dello Sport.it
- Corsaire Prono
- Corse-Matin
- Corso in 3d - Regole di Regata
- Cortina - Faloria Cristallo
- Corunning: sportez à plusieurs
- Cosenza Calcio Official
- Cosidera
- Cosmo Race
- COSMO Sport Academy
- Cosmos Fitness
- Costa Rica Tennis Club
- CostaDauradaCup
- Costanera 365
- Costasoleando
- Cosurf
- COTA - Circuit of The Americas