It doesn't seem like it, though it seems to be trivial to implement -
QString str("How are all of you doing");
QStringList list = str.split(' ').mid(0, maxSplit);
QString remainingStr = str.section(' ', maxSplit);
list << remainingStr;
Or if you want to be more performant, you can just copy the code from QString::split, and add the extra feature. The code is there at qtbase/src/corelib/tools/qstring.cpp. You just need to add && list.size() <= maxSplit
in the while loop.