Objective: Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease characterized by obstructed airflow in the lungs. Pulmonary hypertension (PH) is a common complication of COPD and it is associated with pulmonary vascular remodelling. Monocyte chemoattractant protein-1 (MCP-1/CCL2) is one of the key chemokines associated with migration of monocytes and macrophages. Both MCP-1 and its receptor CCR2 have been declared to be involved in various diseases. We aimed to research a possible association of MCP-1 level, MCP-1-2518 A/G and CCR2 190 A/G polymorphisms with COPD and pulmonary hypertension in this study.