<h3>Purpose/Objective(s)</h3> SRS is an effective and safe treatment option for trigeminal neuralgia (TN). Good dosimetric distribution has made HyperArc (HA) an attractive SRS/FRST technique for treating benign brain lesions. This study aims to evaluate the feasibility of HA for TN by comparing it with the dose distribution of frameless robotic radiosurgery systems. <h3>Materials/Methods</h3> Twenty patients with TN treated by cone-based CK were enrolled. The treatment location was targeted on the whole trigeminal nerve root entry zone (REZ) segment, leaving a 2-mm sparing from the brainstem. The prescription dose was 65 Gy in a single fraction, prescribing to the 80% isodose line with the highest dose of 81.25 Gy in the REZ. The segment of the trigeminal nerve encompassed by the 80% isodose line averaged 7.2 mm in length. Dose to brainstem surface was constrained with a maximum dose of 40 Gy. The corresponding HA plans were generated for the 20 patients to meet the same CK treatment plan criteria, using the high-definition MLC (2.5mm at the center) and SRS NTO optimization algorithm. The CK and HA treatment plans were compared with target coverage, sparing of organs at risk (OARs), and dose distribution metrics. <h3>Results</h3> All the OAR constraints were met in the HA treatment plans. The HA plans exhibited higher coverage of the PTVs than the CK plans, with statistically significant differences (HA vs. CK, 97.2% vs. 92.2%, P = 0.008). The HA plans consistently demonstrate better sparing of the OARs than the CK plans. The mean brain doses were 0.83 Gy and 1.15 Gy for HA and CK (P < 0.001), respectively. The brain V12 was significantly smaller with HA plans than with CK plans (5.9 c.c. in HA vs. 6.9 c.c. in CK, P = 0.019). Significant differences in the maximal and mean doses of the ipsilateral/contralateral CN VII/VIII were observed between the HA and CK plans. The HA plans exhibited a significantly greater conformity index than the CK plans (HA vs. CK, 1.59 vs. 1.71, P = 0.001). The dose gradient radius was similar in the CK and HA plans (HA, 0.28 vs. CK, 0.29). <h3>Conclusion</h3> Excellent sparing of OARs and good dosimetric distribution demonstrated HA is a feasible SRS technique for the treatment of TN. Further clinical studies using HA for TN would be necessary to confirm the therapeutic benefits and toxicity profiles.