ANCA

ANCA or Anca may refer to:


 * Anca (name), Romanian female first name
 * Áncá language
 * Ançã (Cantanhede), civil parish in Portugal
 * Ançã, town in Portugal

Organization

 * Australian Nature Conservation Agency, now Environment Australia
 * Antarctic Names Committee of Australia
 * Armenian National Committee of America

Business

 * ANCA (company), Australian manufacturing company

Science

 * Anti-neutrophil cytoplasmic antibody, proteins detected in a number of autoimmune disorders
 * C-ANCA, a type of autoantibody
 * P-ANCA, a type of autoantibody