Tessa is a feminine given name, sometimes a shortened form of Theresa. It may refer to:

• Tessa (rapper) (born 1997), Danish rapper
• Tessa Albertson (born 1996), American actress
• Tessa Balfour, Countess of Balfour (born 1950), British aristocrat
• Tessa Blanchard (born 1994), American professional wrestler
• Tessa Bonhomme (born 1985), Canadian ice hockey player
• Tessa Brooks (born 1999), American musician and influencer
• Tessa Dahl (born 1957), English author and actress
• Tessa Dare, American novelist
• Tessa de Josselin (born 1989), Australian actress
• Tessa Dunlop (born 1974), British television presenter, radio broadcaster and historian
• Tessa Ferrer (born 1986), American actress
• Tessa Fowler, Vanuatuan politician
• Tessa Ganserer (born 1977), German politician
• Tessa Giele (born 2002), Dutch swimmer
• Tessa Gräfin von Walderdorff (born 1994), German countess
• Tessa Hadley (born 1956), British author
• Tessa Hofmann (born 1949), German sociologist
• Tessa Howard (born 1999), English field hockey player
• Tessa Humphries, Australian actress
• Tessa Ía (born 1995), Mexican actress
• Tessa James (born 1991), Australian actress
• Tessa Joseph, Indian model and actress
• Tessa Jowell (1947–2018), British Labour politician
• Tessa Kelso, (1863–1933), City librarian, Los Angeles Public Library 1889–1895
• Tessa Kennedy (born 1938), British interior designer
• Tessa Keswick (1942–2022), British policy analyst
• Tessa Lark, American concert violinist
• Tessa Majors (2001–2019), American murder victim
• Tessa Mittelstaedt (born 1974), German actress
• Tessa Munt (born 1959), British politician
• Tessa Niles (born 1961), English singer
• Tessa Parkinson (born 1986), Australian sailor
• Tessa Peake-Jones (born 1957), English actress
• Tessa Pollitt (born 1959), British bass guitarist
• Tessa Prendergast (1928–2001), Jamaican actress, fashion designer, and businesswoman
• Tessa Ross (born 1961), English film producer
• Tessa Sanderson (born 1956), British javelin thrower and heptathlete
• Tessa Schram (born 1988), Dutch actress and film director
• Tessa Simpson (born 1986), American mixed martial artist
• Tessa Tennant (1959–2018), British investment advocate
• Tessa Thompson (born 1983), American actress
• Tessa Violet (born 1990), American musician, singer-songwriter, activist and YouTuber
• Tessa Virtue (born 1989), Canadian ice dancer
• Tessa Wheeler (1893–1936), British archaeologist
• Tessa Worley (born 1989), French skier and military officer
• Tessa Wullaert (born 1993), Belgian footballer
• Tessa Wyatt (born 1948), English actress

• Tessa Gray, protagonist of The Infernal Devices novel series by Cassandra Clare
• Tessa Noël, in the TV series Highlander: The Series
• Teresa "Tessa" Testarossa, in the multimedia franchise Full Metal Panic!
• Tessa, a character on the TV series Supernatural
• Sage, a Marvel Comics superhero also known as Tessa
• Tessa (Capcom), in the Red Earth video game series
• Tessa, in the Gilbert and Sullivan opera The Gondoliers
• the title character of Tessa (novel), by Margit Sandemo
• the title character of Tessa (play), by Jean Giraudoux
• Tessa Young, Main Character in the movie, After (2019 film) played by Josephine Langford based on the novel written by Anna Todd

• TESSA, the usual abbreviation for a Tax-exempt special savings account, a tax-privileged investment wrapper in the United Kingdom which was replaced by the ISA.
• TESSA, the Los Angeles Public Library online historical collections, after Tessa Kelso, (1863–1933), City librarian, 1889–1895
• Tess (given name)