Background: Pharmacists have a recognized role in optimizing medication management and enhancing patient quality of care. The Hematology/Oncology Pharmacy Association (HOPA) partnered with American Society of Clinical Oncology (ASCO) Quality Training Program (QTP) to provide 1-day HOPA sponsored HOPA-ASCO QTP Workshops for HOPA members to enhance knowledge and skills related to oncology quality improvement (QI). The Workshop has been given annually from 2019-2022. Methods: The 1-day Workshop is a condensed overview of foundational quality improvement principles and methodologies consistent with ASCO’s QTP 6-month curriculum. These Workshops were tailored for HOPA members with examples specific to challenges routinely met by oncology pharmacists and leveraged prior HOPA-workshop participants to moderate breakout sessions. Surveys were formulated to assess knowledge pre- and post-participation as well as actionable efforts participants made given knowledge gained from the workshop. Results: A total of 124 HOPA members from 83 different oncology institutions have participated in the four workshops. With a 83% post-participation survey response rate, measures of knowledge and competency increased after participation. Knowledge increased an average of 3.3 points from 3.99 to 7.31 (1-10 scale) and competence increased an average of 3.1 points from 3.82 to 6.91. Ninety-nine percent of respondents were extremely or very likely to recommend someone to participate in the workshop, and 99% were extremely or very likely to continue using the skills gained in their practice. In the 3-month follow-up survey (41% response rate), 84% of respondents indicated they used the skills gained from the program somewhat, very or extremely often and 80% had or were planning to develop a QI project. Top reasons for participation were: content focused on cancer care, ASCO’s reputation, and the comprehensive training in the science of quality improvement. Seven participants completed the ASCO QTP 6-month course after participating in the Workshop. Conclusions: Consistent positive feedback from participants and aligned organizational priorities in improving the quality of care of cancer patients facilitates this continued organizational collaboration. Future workshops will consider feedback from participants to optimize the learning environment and program outcomes. This Workshop is the only quality improvement training program focused specifically on oncology pharmacists providing excellent training and education to HOPA members.