No, the Visigoths were not Vikings. The Visigoths were a branch of the Goths, a Germanic people who played a significant role in the decline of the Roman Empire. They are best known for sacking Rome in 410 AD under their king, Alaric I, and later establishing a kingdom in what is now Spain and Portugal.
On the other hand, Vikings were seafaring Norse people from Scandinavia, primarily active from the late 8th to the early 11th centuries. They are well-known for their explorations, trade, and raids across Europe, including the British Isles and even reaching as far as North America.
While both groups were Germanic in origin, their time periods, cultures, and geographical locations were quite distinct. The Visigoths existed primarily during the decline of the Roman Empire, while the Vikings emerged several centuries later. Therefore, categorizing the Visigoths as Vikings is historically inaccurate.