| Birth Date: | 23 January 1982 |
| Birth Place: | Reddish, Stockport,[1] England |
| Occupation: | Actress, singer |
| Known For: | Shameless |
| Yearsactive: | 2004–present |
Samantha Siddall (born 23 January 1982) is an English actress, best known for playing Mandy Maguire in Channel 4 comedy drama series Shameless. Aside from playing Mandy Maguire in Shameless Siddall has previously appeared in Holby City, Bodies, Doctors, Cutting It and Jane Eyre.