Introduction: Sonoelastography is a new ultrasound based technique. It is used to assess tissue elasticity during ultrasound examination .The Achilles tendon is the largest and strongest tendon of the human body, yet it is commonly affected by injuries and degeneration. Aim of work: We investigated the feasibility of sonoelastography in the diagnosis of Achilles tendon disorders, and correlated our results with MRI. Patients and methods: Twenty patients with pain related to the Achilles tendon were included in the study. They were examined by ultrasound, sonoelastography and MRI. The elastograms were divided into 3 grades: Grade 1 : area of marked softening (blue) about ( 0 – 25%) of the tendon, Grade 2 : blue area about (25 - 50%) ,Grade 3: blue area more than 50% of the tendon. MRI grading was done as follows: Grade 1 : normal tendon , Grade 2 : thickened tendon, Grade 3: intratendinous abnormal signal. Agreement between both was calculated. Results: All tendons showed variable degrees of softening. Elastography and MRI showed moderate agreement (κ = 0.44 ; P < 0.001). Conclusion: Sonoelastography is a feasible method in assessment of Achilles tendon abnormalities.