Your 80th birthday speech to mother-in-law gives you the opportunity to express your appreciation for her part in your life. We have just the right speech for you. So tell her how much she means to you, she’ll love you for it. Speak too of what her interest and kindness means to the other guests gathered to celebrate.Choose your favorite speech or selected passages from our speeches and express your feelings at the birthday party or dinner. Finish your 80th birthday speech to mother-in-law with an appropriate toast or wow your audience with one of our poems. That would really add to the occasion!