- Cable, Tom
- Cabrera, Asdrubal
- Cabrera, Jolbert
- Cabrera, Jose
- Cabrera, Melky
- Cabrera, Miguel
- Cabrera, Orlando
- Cabrera, Ángel
- Caffey, Jason
- Cahill, Trevor
- Cain, Matt
- Cairns, Brian
- Cairo, Miguel
- Caisse, Sean
- Calcavecchia, Mark
- Calder, Kyle
- Calderon, Jose
- Caldwell, Andre
- Caldwell, Jim
- Caldwell, Mike
- Calhoun, Jim
- Califf, Danny
- Calipari, John
- Callahan, Ryan
- Callaspo, Alberto
- Calloway, Kyle
- Calvert, Matt
- Camarillo, Greg
- Camby, Marcus
- Cameron, Cam
- Cameron, Jordan
- Cameron, Mike
- Cammalleri, Michael
- Camp, Shawn
- Campana, Tony
- Campanella, Roy
- Campbell, Andrew
- Campbell, Brian
- Campbell, Bruce
- Campbell, Calais
- Campbell, Caleb
- Campbell, Chad
- Campbell, Chris
- Campbell, Dan
- Campbell, Earl
- Campbell, Elden
- Campbell, Gregory
- Campbell, Jason
- Campbell, Jim
- Campbell, Joe
- Campbell, Linda
- Campbell, Mark
- Campbell, Matt
- Campbell, Michael
- Campbell, Stephen
- Campbell, Tommie
- Campoli, Chris
- Cancellara, Fabian
- Canfield, Sean
- Canidate, Trung
- Canizares, Jose Maria
- Cannon, Joe
- Cannon, Marcus
- Cannon, Matt
- Cannon, Scott
- Cano, Robinson
- Canseco, Jose
- Cantu, Jorge
- Cantwell, Hunter
- Canty, Chris
- Capers, Selvish
- Caporusso, Louie
- Capps, Matt
- Capriati, Jennifer
- Capuano, Chris
- Capuano, Jack
- Caracter, Derrick
- Carcillo, Daniel
- Cardinal, Brian
- Cardona, Javier
- Carew, Rod
- Carey, Don
- Carey, Max
- Carey, Vernon
- Carimi, Gabe
- Carle, Matt
- Carlisle, Rick
- Carlson, Jesse
- Carlson, John, (football)
- Carlson, John, (ice hockey)
- Carlton, Steve
- Carmichael, Ricky
- Carmody, Bill
- Carmona, Fausto
- Carney, Keith
- Caron, Jordan
- Caron, Sebastien
- Carpenter, Bobby
- Carpenter, Chris
- Carpenter, Dan
- Carpenter, James
- Carpenter, Keion
- Carpentier, Patrick
- Carr, Brandon
- Carr, Calen
- Carr, Chris
- Carr, David
- Carr, Joe
- Carr, William
- Carrasco, Carlos
- Carrasco, D.J.
- Carrasco, Hector
- Carriker, Adam
- Carril, Pete
- Carroll, DeMarre
- Carroll, Jamey
- Carroll, Matt
- Carroll, Nolan
- Carroll, Pete
- Carson, Bob
- Carswell, Dwayne
- Carter, Andre
- Carter, Anson
- Carter, Anthony
- Carter, Bruce
- Carter, Chris
- Carter, Chris, (baseball)
- Carter, Chris, (football)
- Carter, Cris
- Carter, Dale
- Carter, David
- Carter, Delone
- Carter, Dwight
- Carter, Jeff
- Carter, Jim
- Carter, Jonathan
- Carter, Kevin
- Carter, Marty
- Carter, Matt
- Carter, Matthew
- Carter, Quinton
- Carter, Ryan
- Carter, Tim
- Carter, Tom
- Carter, Tony
- Carter, Tyrone
- Carter, Vince
- Cartwright, Alexander
- Cartwright, Rock
- Carver, Robert
- Casanova, Raul
- Casar, Sandy
- Casey, James
- Casey, Jurrell
- Casey, Paul
- Casey, Sean
- Cash, Swin
- Cashman, Brian
- Cashner, Andrew
- Casilla, Alexi
- Casilla, Santiago
- Casillas, Jonathan
- Cason, Antoine
- Cason, Aveion
- Casper, Billy
- Cassel, Matt
- Cassell, Sam
- Cassels, Andrew
- Cassevah, Bobby
- Cassill, Landon
- Casspi, Omri
- Castanon, Jesus
- Castilla, Vinny
- Castille, Tim
- Castillo, Alberto
- Castillo, Frank
- Castillo, Luis, (baseball)
- Castillo, Luis, (football)
- Castillo, Marck
- Castonzo, Anthony
- Castro, Jason
- Castro, Juan
- Castro, Ramon
- Castro, Starlin
- Catalanotto, Frank
- Cato, Kelvin
- Cavalleri, Silvia
- Cavendish, Mark
- Cawley, Evonne Goolagong
- Ceballos, Cedric
- Cecil, Brett
- Cedeno, Ronny
- Celek, Brent
- Celski, J.R.
- Centers, Larry
- Centrowitz, Matthew, Jr.
- Cepeda, Orlando
- Cerimele, Mike
- Cerritos, Ronald
- Cervelli, Francisco
- Cesaire, Jacques
- Chacin, Jhoulys
- Chacon, Shawn
- Chakvetadze, Anna
- Chalmers, Mario
- Chamberlain, Byron
- Chamberlain, Joba
- Chamblee, Brandel
- Chancellor, Kam
- Chandler, Chris
- Chandler, Eric
- Chandler, Happy
- Chandler, Scott
- Chandler, Tyson
- Chandler, Wilson
- Chaney, Jamar
- Chaney, Jeff
- Chang, Michael
- Chapman, Aroldis
- Chapman, Doug
- Chapman, Johnny
- Chapman, Lamar
- Chara, Zdeno
- Chardy, Jeremy
- Charles, Bob
- Charles, Jamaal
- Charles, Tina
- Charleston, Oscar
- Charlton, Ike
- Chase, Jeff
- Chase, Martin
- Chatman, Antonio
- Chatrier, Philippe
- Chavanel, Sylvain
- Chavez, Endy
- Chavez, Eric
- Chavez, Hugo
- Chavous, Corey
- Cheaney, Calbert
- Chekwa, Chimdi
- Chela, Juan
- Chelios, Chris
- Chen, Bruce
- Chen, T.C.
- Cheney, Lauren
- Chenowith, Eric
- Cherilus, Gosder
- Chesbro, Jack
- Chester, Chris
- Chester, Larry
- Chick, John
- Childress, Brad
- Childs, Chris
- Chimera, Jason
- Chinasa, Ugo
- Ching, Brian
- Chipchura, Kyle
- Choate, Randy
- Choi, K.J.
- Choice, Tashard
- Chones, Jim
- Choo, Shin-Soo
- Chouinard, Marc
- Chrebet, Wayne
- Christensen, Clyde
- Christensen, Erik
- Christian, Bob
- Christiansen, Jason
- Christie, Doug
- Christie, Steve
- Christopher, Nicholas
- Christy, Jeff
- Chung, Il Mi
- Church, Barry
- Chylak, Nestor
- Cibulkova, Dominika
- Cienfuegos, Mauricio
- Cilic, Marin
- Cink, Stewart
- Ciolek, Gerald
- Ciriaco, Pedro
- Cirillo, Jeff
- Cirstea, Sorana
- Cisse, Ousmane
- Clabo, Tyson
- Clady, Ryan
- Claiborne, Chris
- Clair, Bob St.
- Clair, John St.
- Clampett, Bobby
- Clancy, Kendrick
- Clark, Brady
- Clark, Brett
- Clark, Chris, (hockey)
- Clark, Dallas
- Clark, Danny
- Clark, Darius
- Clark, Desmond
- Clark, Dutch
- Clark, Earl
- Clark, Garrett
- Clark, Greg
- Clark, Jeff
- Clark, Joseph
- Clark, Kelly
- Clark, Kenny
- Clark, Keon
- Clark, Michael
- Clark, Mike
- Clark, Randy
- Clark, Ryan
- Clark, Tim
- Clark, Tony
- Clarke, Fred
- Clarkson, David
- Clarkson, John
- Clausen, Jimmy
- Claxton, Speedy
- Clay, Charles
- Clay, John
- Clayborn, Adrian
- Clayton, Mark
- Clayton, Royce
- Clayton, Thomas
- Cleamons, Jim
- Clearwater, Keith
- Cleary, Daniel
- Cleaves, Mateen
- Cleeland, Cameron
- Clemens, Kellen
- Clemens, Roger
- Clement, Matt
- Clements, Jeremy
- Clements, Nate
- Clemmensen, Scott
- Clemons, Charlie
- Clemons, Chris, (football, defensive end)
- Clemons, Chris, (football, safety)
- Clifford, Kyle
- Clifton, Chad
- Clijsters, Kim
- Clinton-Dix, Ha'sean
- Clippard, Tyler
- Clitsome, Grant
- Cloud, Mike
- Cloutier, Dan
- Clowe, Ryane
- Clutts, Tyler
- Clymer, Ben
- Coakley, Dexter
- Cobb, Jennifer Jo
- Cobb, JerShon
- Cobb, Randall
- Cobbs, Patrick
- Coburn, Braydon
- Cochart, Colin
- Cochet, Henri
- Cochran, Jack
- Cochran, Russ
- Cochrane, Mickey
- Cody, Shaun
- Cody, Terrence
- Coetzer, Amanda
- Coffey, Kevin
- Coffey, Paul
- Coffey, Todd
- Coghlan, Chris
- Cogliano, Andrew
- Cohen, Landon
- Cohen, Sasha
- Coke, Phil
- Colaiacovo, Carlo
- Colasanti, Chris
- Colbert, Jim
- Colbert, Keary
- Colbrunn, Greg
- Cole, Bobby
- Cole, Chris
- Cole, Erik
- Cole, Gerrit
- Cole, Julie
- Cole, Marquice
- Cole, Norris
- Cole, Randy
- Cole, Trent
- Coleman, Antonio
- Coleman, Ben
- Coleman, Brad
- Coleman, Chris
- Coleman, Cosey
- Coleman, Derrick
- Coleman, Drew
- Coleman, Erik
- Coleman, Kurt
- Coleman, Marco
- Coleman, Marcus
- Coleman, Quincy
- Coles, Bimbo
- Coles, Laveranues
- Collie, Austin
- Collins, Bobby
- Collins, Dan
- Collins, Doug
- Collins, Eddie
- Collins, Jarron
- Collins, Jason
- Collins, Jed
- Collins, Jimmy
- Collins, Kerry
- Collins, Nate
- Collins, Nick
- Collins, Ryan
- Collins, Sean
- Collins, Terry
- Collins, Tim
- Collins, Todd S.
- Collison, Darren
- Collison, Nick
- Colombo, Marc
- Colome, Jesus
- Colon, Bartolo
- Colon, Willie
- Colquitt, Britton
- Colston, Marques
- Colvin, Rosevelt
- Colvin, Tyler
- Combs, Chris
- Combs, Earle
- Comella, Greg
- Commodore, Mike
- Compton, Mike
- Comrie, Mike
- Comstock, Terry
- Conde, Wilman
- Cone, David
- Conger, Hank
- Conine, Jeff
- Conklin, Ty
- Conlan, Jocko
- Conley, Mike
- Conlon, Maria
- Conner, Chris
- Conner, Frank
- Conner, John
- Conner, Kavell
- Connolly, Dan
- Connolly, Tim
- Connor, Dan
- Connor, George
- Connors, Jimmy
- Conrad, Brooks
- Conrad, Jimmy
- Conroy, Craig
- Considine, Sean
- Contador, Alberto
- Conte, Chris
- Conti, Jason
- Contreras, Carlos
- Contreras, Jose
- Convey, Bobby
- Conway, Brett
- Conway, Curtis
- Conway, John
- Conway, Kevin
- Conwell, Ernie
- Coody, Charles
- Cook, Aaron
- Cook, Brian
- Cook, Chris
- Cook, Daequan
- Cook, Dennis
- Cook, Emanuel
- Cook, Jared
- Cook, John
- Cook, Kyle
- Cook, Mike
- Cook, Omar
- Cook, Rashard
- Cook, Ryan
- Cook, Stacey
- Cooke, Matt
- Cooke, Simon
- Cooley, Chris
- Cooley, Chris
- Coombs-McDaniel, Jamal
- Coomer, Ron
- Cooper, Andre
- Cooper, Ashley
- Cooper, David
- Cooper, Don
- Cooper, Jon
- Cooper, Michael
- Cooper, Riley
- Cope, Derrike
- Copeland, John
- Copper, Terrance
- Cora, Alex
- Corbin, Tyrone
- Cordero, Francisco
- Cordova, Marty
- Cormier, Patrice
- Cormier, Rheal
- Cornet, Alize
- Corrales, Ramiro
- Correia, Kevin
- Cortez, Jose
- Corvo, Joe
- Cosby, Quan
- Costa, Dave
- Costa, Fabio
- Costa, Phil
- Costa, Rui
- Costanzo, Blake
- Cotchery, Jerricho
- Cote, Sylvain
- Cotts, Neal
- Couch, Tim
- Coughlin, Tom
- Coulter, Joey
- Counsell, Craig
- Couples, Fred
- Cousin, Terry
- Cousins, DeMarcus
- Cousins, Oniel
- Cousins, Scott
- Couture, Logan
- Couturier, Sean
- Coveleski, Stan
- Cowan, Jeff
- Cowan, Patrick
- Cowsette, Delbert
- Cox, Christian
- Cox, Derek
- Cox, Kennard
- Cox, Mike
- Cox, Morgan
- Cox, Steve
- Crabtree, Michael
- Crabtree, Tim
- Crabtree, Tom
- Cracknell, Adam
- Craft, Jason
- Crafton, Matt
- Craig, Allen
- Crain, Jesse
- Cramer, Bobby
- Cramer, Rick
- Crane, Ben
- Crawford, Carl
- Crawford, Chris
- Crawford, Corey
- Crawford, Drew
- Crawford, Jamal
- Crawford, Jordan
- Crawford, Richard
- Crawford, Rick
- Crawford, Sam
- Craybas, Jill
- Crayton, Patrick
- Crede, Joe
- Creek, Doug
- Crenshaw, Ben
- Cribbs, Josh
- Crisp, Coco
- Crittenton, Javaris
- Crocker, Chris
- Crockett, Ray
- Crockett, Zack
- Cromartie, Antonio
- Crombeen, B.J.
- Crompton, Jonathan
- Cronin, Joe
- Crosby, Mason
- Crosby, Sidney
- Croshere, Austin
- Cross, Howard
- Crotta, Mike
- Crotty, John
- Crow, Aaron
- Crowder, Channing
- Crowder, Tim
- Crowe, Trevor
- Crowell, Germane
- Crowley, Mike
- Crumpler, Alge
- Cruz, Felipe
- Cruz, Jacob
- Cruz, Jose
- Cruz, Nelson
- Cruz, Victor
- Csonka, Larry
- Cuddyer, Michael
- Cueto, Johnny
- Cuevas, Pablo
- Cullen, David
- Cullen, Desi
- Cullen, Matt
- Cullimore, Jassen
- Culliver, Chris
- Culpepper, Daunte
- Culver, Tyrone
- Cumiskey, Kyle
- Cummings, Candy
- Cundiff, Billy
- Cunego, Damiano
- Cunnane, Will
- Cunning, Mike
- Cunningham, Chad
- Cunningham, Dante
- Cunningham, Jeff
- Cunningham, Jermaine
- Cunningham, Randall
- Cunningham, Richie
- Cunningham, William J.
- Curley, John
- Curry, Aaron
- Curry, Dell
- Curry, Donte
- Curry, Eddy
- Curry, JamesOn
- Curry, Michael
- Curry, Ronald
- Curry, Stephen
- Curtin, Jim
- Curtis, Canute
- Curtis, Colin
- Cushing, Brian
- Cust, Jack
- Cutler, Jay
- Cuyler, Kiki