A study investigated the distribution of post-vocalic /r/ in Singapore English as it may relate to social factors, particularly whether usage appears to be perceived as a prestige feature by those who use it. Informants were 21 subjects from various social backgrounds. Three speech styles representing a range of stylistic variation were elicited: subjects were interviewed, read a passage aloud, and read a word list. Frequency of post-vocalic /r/ use in each speech style was calculated, and subjects were ranked by frequency. The effects of other variables (age, gender, peer group influence, self-consciousness) and the phenomenon of hypercorrection were also examined. It is concluded that (r) is a sociolinguistic variable in this group, with post-vocalic /r/ seen as a prestige feature for some speakers. A sound change may also be occurring, with increased frequency of general usage predicted. The reading passage, word list, and data on individual usage patterns are appended. A 14-item bibliography is included. (MSE)