The tenth season of 7th Heaven—an American family-drama television series, created and produced by Brenda Hampton—premiered on September 19, 2005 on The WB, and concluded on May 8, 2006 (22 episodes).

This season was intended to be the final season, but due to the finale gaining such high ratings, The CW, which was formed after The WB and UPN were combined, gave it an eleventh season.

Matt makes a surprise visit to Glenoak and accompanies Kevin to a children's party where he dresses up as a well-known children's-show character; later they decide to follow Lucy after she tells Kevin she's going to visit Simon, although she's actually visiting Sandy on a private matter involving Martin; Eric has his own suspicions about Lucy's visit to Simon, and after spying on her, he and Matt find out about Sandy's pregnancy; Meredith wonders why Martin no longer keeps his cellphone--which is his way of avoiding Sandy and her situation.

Simon and Rose prepare for their wedding day, despite speculation that it is not the right decision; Annie and Eric imagine various scenarios as they reflect on how the wedding will play out; Rose's former boyfriend unexpectedly appears; Ruthie considers studying in Scotland for the summer; Kevin and Lucy, and Matt and Sarah, all have life-changing news...if only they can find the perfect time to announce it.