Hendrik Trajectinus, Count of Solms, (1636 – 13 July 1693) was a Dutch States Army officer and nobleman.

When William departed for England after the unsuccessful Siege of Limerick, he left Solms in command of his army in Ireland.

However the Count turned down the offer to lead it during the coming campaign and he was replaced by another Dutchman Godert de Ginkell, 1st Earl of Athlone.

Solms then served with William as part of the Grand Alliance forces fighting in the Low Countries.

Commander of the Garde te Voet, he played an important role in the Battle of Steenkerque in 1692.