Josefina Leontina Amanda Wettergrund, née Lundberg pseudonym Lea (2 September 1830, in Ronneby – 8 March 1903, in Stockholm), was a Swedish writer and poet.

She was born to the custom official Carl Gustaf Kjellberg and Ulrika Lundberg.

She was active as a governess and managed a girl school in Ronneby in 1850–1857 before she married the telegrapher Wilhelm Wettergrund and moved to Kalmar.

In 1871–75, she edited the weekly family magazine Svalan, where August Strindberg debuted as a novelist.

She was a well known and popular writer in contemporary Sweden, and admired particularly for her ability to depict the defects of human character with humor.