Diners Club logo Posted on June 26, 2015 by admin Diners Club logo Sign - Symbol - Watermark - Trademark - Company logo. The below image is of the Diners Club logo showing the sign by itself or the logo including the brand name of the relevant company. Diners Club logo Diners Club logo Tags: diners club, diners club brand, diners club logo, diners club logos, diners club sign, diners club symbol, diners club trademark