Pediatrician Day in Argentine

National Psoriatic Arthritis Day in Canada on October 19;

World Breast Cancer Day on October 19;

Respiratory Therapists Week in Canada on October 20 (Held in the last week of October);

International Pediatrics Day on October 20 (The Day of Pediatrics or Día Internacional de Pediatría was instituted in 1973, during the World Congress of Pediatrics held in Argentina, in commemoration of the founding of Argentine Pediatric Society);

National Veterinary Technician Week in USA on October 20 (sponsored by the National Association of Veterinary Technicians of America);

Cook's Day in El Salvador on October 20 (Día del cocinero);

National Down Syndrome Day in South Africa on October 20;

Internation Lead Poisoning Prevention Week on October 20 (Held from Sunday to the last full week of October);

Information Overload Day on October 20;

International Mastocytosis & Mast Cell Diseases Awareness Day on October 20;

National Nurses' Day in Thailand on October 21;

Global Iodine Deficiency Disorder Prevention Day or World Iodine Deficiency Day on October 21;