Galoitica: Journal of Mathematical Structures and Applications GJMSA 2834-5568 10.54216/GJSMA https://www.americaspg.com/journals/show/1681 2022 2022 Online Islamic University, Department Of Science and Information Technology, Doha, Qatar Karla Zayood This paper introduces the concepts fuzzy pre-Hilbert spaces and fuzzy co-pre-Hilbert spaces and proves some theorems in this subject. Also, it illustrates many examples to clarify the validity of the new concepts. 2023 2023 40 43 10.54216/GJMSA.040205 https://www.americaspg.com/articleinfo/33/show/1681