A fixing device includes: a cylinder member that rotates in a circumferential direction thereof; a circulating member that circularly moves in a circumferential direction thereof and is pressed against the cylinder member; a heat source that heats a recording medium holding an unfixed toner image and nipped between the cylinder member and the circulating member; and a pressing member provided inside the circulating member, and including a nip forming portion that presses the circulating member against the cylinder member to form a nip region therebetween, and a thrusting portion that thrusts, upstream of the nip forming portion in a moving direction of the circulating member, and from inside the circulating member toward the cylinder member, the circulating member before being pressed against the cylinder member such that the thrust is greater in end portions of the circulating member than in a central portion of the circulating member.