The invention relates to a bone fusion implant (1) for fusing a first bone region (2) to a second bone region (3) of a mammalian bone (4), comprising a first fixing region (6) which has multiple fixing means receiving holes (5a) and which is provided for attaching to the first bone region (2) and comprising a second fixing region (7) which is connected to the first fixing region (6). The second fixing region (7) has multiple securing means receiving holes (5b) and is provided for attaching to the second bone region (3), and a cutting tool guiding contour (9) which specifies a severing line (8) is formed between the first and the second fixing region (6, 7). The invention also relates to a method for the individualized production of such a bone fusion implant (1).
