To see roaches in your dream represents an unwanted quality of yourself in which you need to confront. Maybe this quality is created by undesirable situation of your life. Alternatively, it may be a clever remark of your subconscious mind for smoking marijuana. On a positive note, roaches may also represent quality of being able to grip something firmly. Additionally, it also means longevity. Please also see cockroach.
Read more about dreaming of Roaches in other dream meanings interpretations.