List of National Natural Landmarks in American Samoa
This is a list of National Natural Landmarks (NNL) in American Samoa. All locations are on communally owned lands.
| Name | Designated | District | Coordinates | Description | Image | |
|---|---|---|---|---|---|---|
| Cape Taputapu | 1972 | Western | 14°19′17″S 170°50′36″W / 14.3214°S 170.8432°W | A natural exhibit of shoreline, offshore volcanic rocks, and blowholes sculpted by heavy sea-wave action | 
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| Fogamaʻa Crater | 1972 | Western | 14°21′24″S 170°45′13″W / 14.3568°S 170.7535°W | One of very few illustrations of the most recent episode of volcanism in American Samoa | 
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| Matafao Peak | 1972 | Eastern | 14°17′38″S 170°42′16″W / 14.2939°S 170.7045°W | One of five great masses of volcanic rocks that extruded as molten magma during the major episodes of volcanism that created Tutuila Island | 
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| Leʻala Shoreline | 1972 | Western | 14°21′36″S 170°46′38″W / 14.3600°S 170.7773°W | A young flow of basalt, inter-bedded with layers of tuff, that illustrates erosion by wave action | 
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| Rainmaker Mountain (Mount Pioa) |
1972 | Eastern | 14°16′21″S 170°39′21″W / 14.2725°S 170.6558°W | An outstanding example of the gigantic plugs that created Tutuila Island | 
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| Vai'ava Strait | 1972 | Eastern | 14°14′21″S 170°40′17″W / 14.2393°S 170.6715°W | A classic illustration of steep cliffs and erosion-resistant outliers formed by wave action on a volcanic mass | 
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| Aunu'u Island | 1972 | Eastern | 14°17′00″S 170°33′12″W / 14.2833°S 170.5534°W | The site of recent episodes of volcanism backed by a geologically recent tuff cone | 
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