| Nationality: | German |
| Heike Warnicke | |
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| Birth Name: | Heike Schalling |
| Country: | East Germany Germany |
| Club: | ESC Erfurt |
| Birth Date: | 1 June 1966 |
| Birth Place: | Weimar, East Germany |
| Weight: | 63 kg |
| Turnedpro: | 1981 |
| Retired: | 1998 |
Heike Warnicke (pronounced as /de/; Schalling, later Sinaki, born 1 June 1966) is a German former speed skater who competed in the 1992 and 1994 Winter Olympics.
She was born in Weimar.
In 1992, Warnicke won the silver medal in the 3,000 metres event as well as in the 5,000 metres competition, both times behind Gunda Niemann. In the 1500 metres contest, she finished eighth.
Two years later, at the Winter Olympics in Lillehammer, Warnicke finished 14th in the 5000 metres event, 15th in the 3000 metres competition, and 26th in the 1500 metres contest.