This study evaluated the effects of incorporating chaya leaf meal (CM) and black soldier fly larvae (BSFL) into broiler chicken diets. Ninety-six 7-day-old male Arbor Acre broilers were divided into six dietary treatments with four replicates, four birds each. Diets included a control basal diet, 5% CM, 5% BSFL, a combination of 5% CM and 5% BSFL, and two finisher diets containing either 5% CM or 5% BSFL from days 22 to 42 (CM-F and BSFL-F, respectively). Chickens in the control and BSFL groups had the lowest feed conversion ratio during days 7–21 (P < 0.05). Blood profiles and immunoglobulin Y levels were not statistically different between the groups. The BSFL group had a stronger ileal immunoglobulin A fluorescence signal and lower liver weight compared to the control, while jejunum and ileum weights were higher in the CM + BSFL group (P < 0.05). Lauric acid was not detected in the breast meat of the control group. In contrast, it was present in the breast meat of chickens fed 5% BSFL, constituting 0.92% and 1.43% of total fatty acids in the chickens fed 5% BSFL (BSFL and BSFL-F, respectively). These preliminary results indicate that CM and BSFL may be an alternative protein source in broiler nutrition. However, given the small sample size of this study, further large-scale research is required.