Chronic pelvic pain (CPP) affects up to 15% of women in the United States. The endocannabinoid system can be a pharmacological target for endometriosis-related pelvic pain, as cannabis receptors are highly expressed in the uterus and other non-reproductive tissues. We hypothesize that many patients with CPP use cannabis and report improvement in symptoms. An anonymous, confidential, electronic survey was performed from March through August 2019. Patients aged 18 through 89 were included if they had a diagnosis of pelvic/perineal pain, dyspareunia, or endometriosis. Subjects were approached during outpatient appointments. Study approval was obtained from the Institutional Review Board. A total of 122 of 240 (50.8%) patients responded. Of these, 113 self-reported a diagnosis of CPP (92.6%). Twenty-six patients reported cannabis use (23%). Six (24%) used Cannabidiol (CBD), 3 (12%) used tetrahydrocannabinol (THC), and 15 (60%) used a combination of CBD and THC. Frequency of use varied, with the majority using at least once per week (n=18, 69.2%). Only 5 (19.2%) utilized a State Medical Cannabis Program to obtain a certification. Of users, 24 (92.3%) reported improvement in symptoms, including pain, cramping, muscle spasms, anxiety, depression, sleep disturbances, libido, and irritability. However, 21 (80.7%) reported side effects; the most common were dry mouth, sleepiness, and feeling “high.” Up to 23% of patients with CPP report use of cannabis as an adjunct to their prescribed therapy, and they use a variety of formulations and doses. Most report daily or weekly use. Although side effects are common, most users report improvement in symptoms.