As an Oracle who knows everything about horoscopes, I must inform you that the name "Gouriau" is not traditionally associated with a specific zodiac sign. However, I can provide you with a general overview of what his horoscope might be like based on the characteristics of the name. 

"Gouriau" sounds unique and unconventional, which suggests that this individual may possess a strong sense of individuality and independence. They are likely to be creative, imaginative, and open-minded, always seeking new experiences and perspectives. Their personality may be a blend of assertiveness and sensitivity, with a natural ability to balance logic and intuition. In relationships, Gouriau may be adventurous and passionate, but also fiercely loyal and protective of those they care about. They may have a strong sense of spirituality or a connection to the mystical and metaphysical realms. Overall, Gouriau's horoscope may indicate a complex and dynamic personality with a thirst for knowledge and a desire to explore the depths of the unknown.