Fundamentally, a tattoo is an expression of the person who has it. So a better question is, does an octopus tattoo have any special meaning to you?
When getting a tattoo try to consider something that you would be proud to show your future children, because it will be around that long. Also, tattoos with a lot of detail will tend to blue over time, so strong simple designs are best. Colors will also fade, so unless you plan to have it touched up, again keep to simple designs.
I’ve always been partial to Japanese tattooing.