The purpose of this study was to determine the effect of religiosity, knowledge and attitudes on consumer intention to consume halal food, cosmetics and pharmaceutical products in Indonesia. The data is collected from online questionnaires and the total data used for this study was obtained from a total of 684 respondents from 27 provinces in Indonesia. This study used a quantitative approach because the purpose of this study was to test hypotheses and the relationship between variables such as religiosity, knowledge, attitudes, and intentions to consume halal food, cosmetics and pharmaceutical products. The result of this study indicated that the relationship among religiosity, knowledge and attitudes positively influenced consumer intention to consume halal food, cosmetics and pharmaceutical products. The study also found that religiosity had more influence on consumer intentions to consume halal food than cosmetics and pharmaceuticals products. Meanwhile knowledge had more influence on consumer intention to consume halal pharmaceuticals than cosmetics and food products. In fact, attitude had a positive influence on intention to consume halal food and had a greater influence over it compared to consumption of cosmetics and pharmaceutical products. In addition, this study is one of the first attempts to determine the reason for differences in consumer intentions to consume halal food, cosmetics and pharmaceutical products in Indonesia.