Primary gastric lymphoma is a rare gastrointestinal cancer in children. Adult cases of primary gastric lymphoma are often associated with Helicobacter pylori infection and in the past were treated mainly by surgery with additional chemotherapy and/or radiotherapy. We experienced a case recently of a primary gastric lymphoma in a girl. She presented at our hospital with epigastric abdominal pain and upper gastrointestinal bleeding. Chemotherapy alone sufficiently controlled the disease and no additional therapeutic modalities were needed.