Riser holders and floating structures or vessels comprising the same are disclosed. Riser holder according to an embodiment of the present invention, the upper joint coupled to the upper end of the riser is inserted into the lower portion from the top, the mounting unit is disposed on the hull so as to be movable in accordance with the rise of the riser; And a shock absorbing unit coupled to the mounting unit, the shock absorbing unit provided to absorb a shock due to the shaking of the mounting unit.
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