Lipomas are mesenchymal tumors, secondary to hamartomatous proliferation of mature adipose cells, affecting all ages, that is presented by a painless mass evolving since several years, Giant cervical lipomas are very rare, they usually affect the posterior triangle. Ultrasonography is the first examination required for diagnosis CT or MRI scans are indicated to confirm the diagnosis and eliminate liposarcoma. Post-operative surveillance should be extended due to possible recurrence and possible malignant transformation. In this article, we report a young patient who has a giant lipoma of the neck evolving for 10 years.