Background: Distal ulna fractures are relatively uncommon in isolation, but they are frequently associated with distal radius fractures in the form of ulnar styloid fractures. Locked distal ulna fixation is an attractive method to provide low profile, stable fixation that allows early range of motion [ROM] and rehabilitation of the hand, wrist, and forearm. The aim of this work was to evaluate the clinical and radiological outcomes of distal ulna hook locking plate for fixation of distal ulna fractures associated with or without distal radius fractures. Methods: A prospective study included 20 participants underwent open reduction and internal fixation by distal ulnar hook locking plate at Benha university Hospital, Mansheit El-Bakry general hospital, Cairo, Egypt. Results: Mayo score was estimated during this study which revealed that mean Mayo score was 87.5, ranged from 60 to 100; 70% of cases had excellent, 20% had good and 10%had satisfactory Mayo score. Overall grip strength proportion was evaluated during this study which revealed that mean proportion of overall grip strength was 87.6%. Dominant grip strength proportion was evaluated during this study which revealed that mean proportion of overall grip strength was 86.4%. Non-dominant grip strength proportion was evaluated during this study which revealed that mean proportion of overall grip strength was 92.5%. Among all studied cases, 80% had no complications, 5% had infection, 5% had non-union revision and Delayed union in our study occurred in 2 patients [10 %]. Conclusion: The distal ulna hook plate is an anatomic plate contoured to fit to the distal ulna. The good outcomes achieved in this study suggest that usage of the distal ulna hook plate could be an alternative treatment method for fixation of distal ulnar fractures. All distal ulna fractures achieved good results, functional outcomes were promising, including wide wrist ROM and no DRUJ instability.