Background: According to the World Health Organization International Agency for Research on Cancer, gastrointestinal (GI) cancers account for 1 in 4 cancer cases and 1 in 3 cancer-related deaths worldwide. An estimated 4.8 million new cases of GI cancers and 3.4 million related deaths occur annually. Understanding the need for increased GI cancer awareness, patient education and support, the GI Cancers Alliance developed a series of engagement activities for the GI cancer community as a needs assessment to identify critical gaps in support services, fragmented education, and disease awareness. Methods: Our 12-month patient-reported outcomes (PRO) research included an online anonymous survey, individual and small group interviews, focus groups, advisory boards, and an interactive workshop at the 2023 American Society of Clinical Oncology annual meeting. 1,122 patients participated during this 12-month PRO research period. Participants reported being diagnosed with one of the following GI cancer primary tumor types: Anus (3%), Appendix (2%), Bile Duct (6%), Colon (19%), Esophagus (7%), Gallbladder (5%), Gastric (14%), GI NET / GI Carcinoid Tumor (3%), Liver (7%), Pancreas (6%), Small Intestine (4%), Rectum (23%), Unknown primary location (1%). Results: Overarching areas of unmet need include: health disparities throughout the care continuum for underserved populations (21%); lack of adequate precision oncology patient education, including biomarker education and testing (19%); the rise of early-age onset (EAO) in GI cancers and the unique needs of the young adult (YA) population (18%); nutritional wellness education (17%); insufficient support for family caregivers and caregiver respite services (16%) scarcity of patient-centered care and adequate patient-clinician communication (11%). Conclusions: Our PRO research underscores the unmet needs and gaps in support services of the GI cancer community. Our global call to action includes partnering with our 100+ member organizations to amplify the patient voice and patient-lived experience, and cross-collaboration with our community of advocates, patients, caregivers, and clinicians. Our shared call to action and continued collaboration provides a greater impact for our GI cancer community to help meet patient needs and eliminate critical gaps in services.