The 36-year-old actress, who celebrated her birthday on Saturday, posted a photo with Bader Shammas, a financier, calling her husband.
“I am the luckiest woman in the world. You found me and you knew I wanted to find happiness and grace, all at the same time. I am amazed that you are my husband,” she wrote.
The couple revealed their engagement in November.
“My love. My life. My family. My future,” Lohan wrote in a post, labeling Shammas, at the time.
Lohan is best known for her starring roles in successful remakes of “The Parent Trap” and “Freaky Friday,” as well as for the 2004 teen comedy “Mean Girls.”
“My life and my whole. ❤️ All women have to feel this way every day,” Lohan concluded in her post Saturday.