Facebook is the most popular social media platform today. It allows you to connect with your loved ones and enhances your marketing efforts. You can easily log in to your Facebook account from any device. Some situations arise when you need to clear your Facebook search history. This helps you that refrain from letting anyone know what you are looking out for. For that, log into your Facebook account and click on the arrow pointed downwards. Then click on Settings & Privacy and select Activity Log to answer how to delete Facebook history on iPhone. After that, click on Filter. Then scroll down and locate the search history. After that, click on Save Changes. This is how you clear your Facebook search history on an iPhone.