What is the name of the patriotic figure known for his flamboyant signature on the Declaration of Independence?

The name associated with a flamboyant signature on the Declaration of Independence is John Hancock. His signature is famously large and bold, which has led to the common idiom "put your John Hancock here" when referring to signing a document. Hancock was not just noted for his signature; he was also a prominent political leader in the American Revolution and served as the President of the Second Continental Congress. His display of enthusiasm for independence and willingness to take risks made him a symbol of American patriotism.

In comparison, while Thomas Jefferson was the principal author of the Declaration of Independence, his signature, although historically significant, did not stand out in the same manner as Hancock's. Samuel Adams was a key figure in organizing resistance against British taxation but is not specifically known for his signature. Benjamin Franklin played an important diplomatic role for the colonies but, like Adams, is not associated directly with a notable signature on that document. Thus, John Hancock's association with a distinctive and flamboyant signature highlights his role as an icon of American independence.