Background: Understanding experiences of community oncology practices in recruiting informal (unpaid/family) caregivers into research studies can inform resources and strategies to improve their enrollment. In this study, we aimed to describe the recruitment of informal caregivers for research studies in community oncology practices. Methods: The 2022 cross-sectional Landscape Assessment of National Cancer Institute Community Oncology Research Program (NCORP) assessed research capacity among network oncology practices. The University of Rochester Cancer Center (URCC) NCORP Research Base used these data to examine factors associated with the recruitment of informal caregivers into research studies in community oncology practices, adjusting for region of the country, practice ownership type, and total number of oncologists in logistic regression analyses. Results: Information was available from 517 discrete practices representing 271 practice groups. After excluding those serving pediatric patients exclusively (n=12) and missing information on recruitment of informal caregivers (n=1), 258 practice groups were included in final analyses. The practice groups had on average 20 oncologists [standard deviation (SD) 28.8]. Over 70% of practice groups (190/258) had advanced practice providers (APPs) involved in clinical research activities. Less than one third of practice groups (30%, 78/258) had experience recruiting informal caregivers of oncology patients for research studies. Informal caregivers were recruited in the following settings: medical oncology (97%, 76/78), radiation oncology (24%, 19/78), survivorship clinic (14%, 11/78), and surgical oncology (10%, 8/78). On multivariable analysis, having a greater number of oncologists [odds ratio (OR) 2.40, 95% Confidence Interval (95% CI) 1.23 - 4.67] and having APPs involved in clinical research activities (OR 2.32, 95% CI 1.13 - 4.76) were positively associated with experience recruiting informal caregivers for research studies. Conclusions: Most community oncology practices did not have experience recruiting informal caregivers of oncology patients, which may reflect limited research in this area. Future research should explore barriers for recruiting informal caregivers into research studies, especially in practices that may have fewer resources such as small community oncology practices or those without APPs involved in research activities.