| catfish | peixe-gato |
| catgirl | catgirl |
| catgut | categute |
| Cathar | Catarismo |
| Cathar castles | Castelos cátaros |
| Catharina Svensson | Catharina Svensson |
| Catharism | Catarismo |
| catharsis | catarse |
| Cathay | China |
| Cathay Pacific | Cathay Pacific |
| Cathaya | Cathaya |
| cathead | serviola |
| cathedral | catedral |
| Cathedral diagram | Navio |
| Cathedral of Brasília | Catedral Metropolitana Nossa Senhora Aparecida |
| Cathedral of Chartres | Catedral de Chartres |
| Cathedral of Christ the Saviour | Catedral Cristo Salvador |
| Cathedral of Guarda | Sé da Guarda |
| Cathedral of Saint Paul | Catedral de São Paulo |
| Cathedral of Saint Paul in Macau | Ruínas de São Paulo |
| Cathedral of San Salvador | Catedral de Oviedo |
| Cathedral of Santa Eulalia | Catedral de Santa Eulália de Barcelona |
| Cathedral of Santiago de Compostela | Catedral de Santiago de Compostela |
| Cathedral of Toledo | Catedral de Toledo |
| Cathedral of Zamora | Catedral de Zamora |
| Cathedral of Ávila | Catedral de El Salvador de Ávila |
| Cathedral of Évora | Sé Catedral de Évora |
| cathedrall | cátedra |
| Cathedrals in Spain | Catedrais de Espanha |
| Cathepsin | Catepsina |
| Catherdal | Catedral |
| Catherine | Catarina |
| Catherine Bell | Catherine Bell |
| Catherine Deneuve | Catherine Deneuve |
| Catherine Howard | Catarina Howard |
| Catherine I of Russia | Catarina I da Rússia |
| Catherine Michelle of Spain | Catarina Micaela de Espanha |
| Catherine of Alexandria | Santa Catarina |
| Catherine of Aragon | Catarina de Aragão |
| Catherine of Austria | Catarina de Áustria |
| Catherine of Bologna | Catarina de Bolonha |
| Catherine of Genoa | Santa Catarina |
| Catherine of Habsburg | Catarina de Áustria |
| Catherine of Ricci | Santa Catarina |
| Catherine of Siena | Catarina de Siena |
| Catherine of Vadstena | Santa Catarina |
| Catherine of Valois | Catarina de Valois |
| Catherine of Ymseborg | Catarina Sunnesdotter da Suécia |
| Catherine Palace | Palácio de Catarina |
| Catherine Parr | Catarina Parr |
| Catherine wheel | girândola |
| Catherine Zeta-Jones | Catherine Zeta-Jones |
| catheter | cateter |
| cathetus | cateto |
| cathexis | catexia |
| cathode | cátodo |
| Cathode rays | Raio catódico |
| catholic | católico |
| Catholic Charismatic Renewal | Renovação Carismática Católica |
| Catholic Church | Igreja Católica |
| Catholic Diocese of the Old Catholics in Germany | Velha Igreja Católica |
| Catholic League | Liga Católica |
| Catholic marriage | Casamento religioso |
| Catholic Monarchs | Reis Católicos |
| Catholic order | Ordens e congregações religiosas católicas |
| Catholic sacraments | Sacramento |
| Catholic social teaching | Doutrina Social da Igreja |
| Catholic University of Angola | Universidade Católica de Angola |
| Catholic University of Portugal | Universidade Católica Portuguesa |
| Catholicism | catolicismo |
| catholicity | universalidade |
| Catholisism | Catolicismo |
| Catilina | Lúcio Sérgio Catilina |
| Catiline | Lúcio Sérgio Catilina |
| Catiline Orations | Catilinárias |
| Catinaccio group | Rosengarten |
| cation | catião |
