The COVID-19 pandemic and the measures established by governments to protect populations have caused significant harm to humanity, not only regarding public health but also in terms of economic and social welfare. This study aims to assess the health status and behavior of pets during the total lockdown period in Algeria from March to June 2020. An online questionnaire consisting of 20 questions was published. A total of 200 pet owners across various departments participated. The lockdown had a negative impact on the physical health of 19.5% of individuals, with weight gain, allergies, and diabetes being predominant (51.8%, 27.7%, and 20.5%, respectively). 38.5% of cases report behavioral disorders, with hyper attachment, aggressiveness, and disobedience being predominant (47.3%, 27.6%, and 18.4%, respectively). The study helped estimate the negative impact of the lockdown on the physical and psychological health of animals. This information will aid in preventing similar damage in case of future pandemics or epidemics.