BACKGROUND: Chronic plantar fasciitis (CPF) is a common disease that has various treatment options. This study aimed to compare the effectiveness of three of these options: corticosteroid injection (CSI), extracorporeal shock wave therapy (ESWT), and radiofrequency thermal lesioning (RTL). METHODS: The records of 229 patients treated with CSI (n = 81), ESWT (n = 76), or RTL (n = 72) were retrospectively analyzed. Visual analog scale scores, patient satisfaction-related success rates, repeated treatment rates, and initial treatment change rates were compared. RESULTS: Mean ± SD follow-up was 19.0 ± 4.5 months. Baseline clinical characteristics, mean visual analog scale scores (before treatment and at months 3, 6, and 12), patient satisfaction and success rates (at months 6 and 12), and repeated treatment and initial treatment change rates were similar between treatment groups. No complications were observed after the treatments. CONCLUSIONS: All three options-CSI, ESWT, and RTL-were found to be safe and effective in treating CPF, with similar outcomes up to 1 year. Use of CSIs is advantageous because it is more accessible than the other treatments. Similarly, the noninvasive nature of ESWT is glaring among other minimally invasive options. Therefore, the first-line treatment modality of CPF can be CSI or ESWT, depending on the patient's and physician's joint preference; RTL treatment should be tried in patients who do not respond to these treatments.