A fishing line guide to be mounted to a fishing rod, comprising: a guide body with a through hole formed therein; and a guide ring fitted into the through hole of the guide body, wherein the guide ring has a top portion that is most distant from the fishing rod in a vertical direction extending vertically with respect to an axial direction of the fishing rod, wherein the guide ring has a guide rear portion located on a rear side of the top portion and a guide front portion located on a front side of the top portion, and the guide ring is configured such that a thickness of the guide rear portion on the rear side relative to the top portion is larger than that of the guide front portion on the front side relative to the top portion the guide ring is curved so that a gap is formed between an outer peripheral surface of the guide ring and an inner peripheral surface of the guide body, and the fishing line guide further comprises an adhesive arranged in the gap, the through hole is defined by the inner peripheral surface of the guide body, the inner peripheral surface has an inclined portion (214a1) and a small diameter portion (214a2), the inclined portion (214a1) extending so as to be inclined with respect to an axis of the guide ring, the small diameter portion (214a2) extending parallel to the axis, the inclined portion (214a1) is formed such that the through hole has a diameter decreasing frontward, the small diameter portion (214a2) has a diameter smaller than that of the inclined portion, and the guide ring is fitted into the through hole such that a front end surface thereof comes in contact with the small diameter portion (214a2). a guide body with a through hole formed therein; and a guide ring fitted into the through hole of the guide body, wherein the guide ring has a top portion that is most distant from the fishing rod in a vertical direction extending vertically with respect to an axial direction of the fishing rod, wherein the guide ring has a guide rear portion located on a rear side of the top portion and a guide front portion located on a front side of the top portion, and the guide ring is configured such that a thickness of the guide rear portion on the rear side relative to the top portion is larger than that of the guide front portion on the front side relative to the top portion the guide ring is curved so that a gap is formed between an outer peripheral surface of the guide ring and an inner peripheral surface of the guide body, and the fishing line guide further comprises an adhesive arranged in the gap, the through hole is defined by the inner peripheral surface of the guide body, the inner peripheral surface has an inclined portion (214a1) and a small diameter portion (214a2), the inclined portion (214a1) extending so as to be inclined with respect to an axis of the guide ring, the small diameter portion (214a2) extending parallel to the axis, the inclined portion (214a1) is formed such that the through hole has a diameter decreasing frontward, the small diameter portion (214a2) has a diameter smaller than that of the inclined portion, and the guide ring is fitted into the through hole such that a front end surface thereof comes in contact with the small diameter portion (214a2).