List of National Natural Landmarks in Puerto Rico

! style="background-color:{{NNL color}}" class=unsortable |

! style="background-color:{{NNL color}}" | Name

! style="background-color:{{NNL color}}" class=unsortable | Image

! style="background-color:{{NNL color}}" | Date

! style="background-color:{{NNL color}}" | Location

! style="background-color:{{NNL color}}" | Municipality

! style="background-color:{{NNL color}}" | Ownership

! style="background-color:{{NNL color}}" class=unsortable | Description

| Baño de Oro Natural Area

| File:Rain Forest of El Yunque, Puerto Rico.jpg

| {{dts|1980}}

|{{Coord|18.3080090

| Río Grande

| Federal (United States Forest Service)

| The only contiguous area in Puerto Rico that contains subtropical wet forest, rain forest, dwarf forest, and Pterocarpus. Part of El Yunque National Forest.

| Cabo Rojo

| 100px

| {{dts|1980}}

|{{Coord|17|56|01.2|N|67|11|31.9|W}}

| Cabo Rojo

| Territorial (Puerto Rico Department of Natural and Environmental Resources)

| An excellent example of a tombolo with two sand spits.

| Mona and Monito Islands

| 100px

| {{dts|1975}}

|{{Coord|18|5|5.2|N|67|51|4.4|W}}

| Mayagüez

| Territorial (Puerto Rico Department of Natural and Environmental Resources)

| Caves on these islands are some of the most extensive flank margin caves in the world.

| Puerto Mosquito

| 100 px

| {{dts|1980}}

|{{Coord|18|06|07|N|65|26|45|W}}

| Vieques

| Territorial (Puerto Rico Department of Natural and Environmental Resources)

| Considered the best example of a bioluminescent bay in the United States.

| Río Abajo State Forest

| 100 px

| {{dts|1980}}

|{{Coord|18|20|23|N|66|41|59|W}}

| Utuado

| Territorial (Puerto Rico Department of Natural and Environmental Resources)

| An excellent example of karst topography with numerous sinkholes and well-developed tower karst.