S. concinna may refer to:
Schinia concinna, a North American moth Schismatoglottis concinna, a flowering plant Schizura concinna, a North American moth Scissurella concinna, a sea snail Sepsis concinna, an ant-mimicking fly Sigara concinna, a water boatman Siphonalia concinna, a sea snail Stenelmis concinna, a rifle beetle Stratiomys concinna, a soldier fly Swainsona concinna, a flowering plant Synaptocochlea concinna, a sea snail