Background: Cubitus varus is the most frequent post-traumatic late consequence of paediatric displaced supracondylar humeral fractures. Malunion is the most common cause of these deformities. Commonly present as cosmetic deformity but it may also cause increased chances of lateral humeral condyle fractures, posterolateral instability of the elbow, and tardy ulnar nerve palsy. Different types of corrective osteotomies have been described from simple wedge osteotomy to complex three-dimentional osteotomy but none with consensus. We conducted this study to evaluate the results of a simple lateral closed wedge osteotomy fixed with K-wires in these patients. Aim and Objectives: To study the functional and radiological outcomes of a lateral closed wedge osteotomy fixed with K-wires to correct cubitus varus. Materials and Methods: Twenty children with malunited supracondylar fracture humerus leading to cubitus varus deformity underwent lateral closed wedge osteotomy, which was fixed with K‑ wires. Patients were evaluated for elbow range of motion, carrying angle, radiological correction of humeroulnar angle and complications if any. Results: The mean follow-up period was 2.3 years (range 1 to 6 years). The results were assessed as per Morrey criteria. Eighteen (90%) patients showed excellent results, two (10%) good while none showed fair or poor results in the follow-up. Average preoperative varus was 17.05 degrees (range 10-30), improved to postoperative valgus angle measured 10.1 degrees (range 7-14 degrees). One case had superficial pin tract infection. Conclusion: With proper planning and execution, good results can be achieved with a simple lateral closed wedge osteotomy fixed with K-wires for correction of cubitus varus deformity. Complex osteotomies are not always necessary.