Abstract: To provide a novel fluoroadamantane derivative, a novel polymerizable fluoroadamantane derivativeand a novel fluoropolymer, and processes for production thereof. To provide the following compound (3), the following compound (4), a polymer obtained by polymerizing the compound (4) and processes for production thereof: provided that Q represents —CHF— or —CF2— (provided that six Qs may be the same or different), Z represents —H, —F or —CH2OH (provided that three Zs may be the same or different), W represents —H or a C1-10 hydrocarbon group, R represents —H, —F, —CH3 or —CF3, and J represents —H, —F, —CHWOH or —CHWOCOCR?CH2 (provided that three Js may be the same or different).